APPENDIX 2: FAMILY POVERTY STATUS AND FAMILY POVERTY LEVEL VARIABLES

Return to appendix 2 contents


Introduction

Family Poverty Status and Family Poverty Level variables are calculated using the Poverty Income Guidelines, updated yearly by the U.S. Department of Health and Human Services. The Poverty Income Guidelines use one person as a base and an increment is added to that figure for each single person increase in family size.

An NLSY79 respondent is determined to be in poverty if the family income for the last calendar year for the family size is below the Poverty Income Guidelines. The family poverty level, available for survey years 1979, 1987 and later survey years, is the actual federal Poverty Income Guideline amount for each NLSY79 respondent based on the family size for that survey year.

Three sets of guidelines exist, one each for 1) the contiguous 48 states, 2) Alaska, and 3) Hawaii. The figures for Alaska and Hawaii apply scaling factors of 1.25 and 1.15 (respectively) of the figure for the contiguous 48 states. These figures mean that the guidelines for Alaska are 1.25 times those for the contiguous 48 states (or 25% greater), and the guidelines for Hawaii are 1.15 times those of the contiguous 48 states (or 15% greater). In addition, a distinction was made between farm and non-farm families for the contiguous 48 states, Alaska, and Hawaii. Poverty Income Guidelines for farm families were defined as 85% of those for non-farm families. This farm and non-farm distinction was officially eliminated after 1982, and that change was reflected in the NLSY79 variable creation.

For survey years 1980 through 1986, CHRR staff projected poverty guidelines used in the NLSY79 household interview schedule and in the creation of poverty status. This was done because the guidelines were issued in February of the survey year, more than a month after all materials had to be printed for the field period.

For survey years 1979 and 1987 and after, changes in the household interview eliminated the need for projected poverty guidelines, and the actual Poverty Income Guidelines were used in the creation of the NLSY79 poverty status. Because of these changes, there is a higher missing rate in the later survey years on the family poverty status variable for these years.

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1979 FAMILY POVERTY STATUS CREATION

The 1979 NLSY79 household interview schedules did not use the Poverty Income Guidelines. As a result, when the family poverty status and the family poverty level variables were created in 1990, the actual federal Poverty Income Guidelines were used.

Since the 1979 family poverty status variable was not created until 1990, a modified version of the family poverty status variable creation was used. First, if the created total net family income variable R(2179.) was greater than zero then income was compared to the Poverty Income Guideline amount for the respondent's family size, farm/non-farm distinction, and state of residence. Second, if the total net family income was less than zero, an abbreviated version of income was calculated using selected income variables (primarily earned income variables and other income variables that did not require computation of the number of months that the income was received). This abbreviated income amount was only used to determine if the family was not in poverty. Third, if the family poverty status was not computed based on either of the previous scenarios, then the screener income R(1916.10), if it was greater than zero, was compared to the Poverty Income Guideline amount for the respondent's screener family size, farm/non-farm distinction, and 1979 state of residence. A special flag variable (R2179.30) was created so that users could determine which income value was used to create the poverty status and the poverty level.

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1980-2006 FAMILY POVERTY STATUS AND 1988-2006 FAMILY POVERTY LEVEL CREATION

1980-2006 NLSY79 Family Poverty Status and 1988-2006 Family Poverty Level variable creation is contained in the algorithm for Total Net Family Income, which is part of this appendix.

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1980-1986 POVERTY INCOME GUIDELINE PROJECTIONS

The following is a brief description of the procedure used by NLSY79 staff to project the Poverty Income Guidelines that were used in the NLSY79 Family Poverty Status and Family Poverty Level variables. All procedures are applied to the various sets of guidelines and the income increments for those guidelines.

From 1980-1986, NLSY79 staff used the Consumer Price Index (CPI) from the two years preceding the actual NLSY79 survey year to project the Poverty Income Guidelines for the NLSY79 survey year. The following steps were taken:

  1. The average CPI was calculated for each of the two years preceding the NLSY79 survey year (i.e. for the 1982 NLSY79, the average CPI for 1981 and 1980).
  2. The average CPI for the most recent year was divided by the average CPI for the next most recent year (i.e. for the 1982 NLSY79, the 1981 average CPI was divided by the 1980 average CPI). The result is the most recent year's CPI as a percentage of the next most recent year's CPI (i.e. for the 1982 NLSY79, the 1981 CPI as a percentage of the 1980 CPI). This is a scaling factor for the amount of change in the average CPI between these two years. This number has been greater than 1 since 1979, because the CPI has always risen between years, not declined. The amount that the scaling figure is greater than 1 is the actual percentage of change between years (i.e. a scaling factor of 1.03561 between 1980 and 1981 indicates that the CPI for 1981 was 1.03561 times the CPI for 1980, or 3.561% greater.)
  3. The Poverty Income Guidelines for the year preceding the actual NLSY79 survey year are multiplied by the scaling factor resulting from the operation in Step 2 (i.e. for the 1982 NLSY79, the 1981 Poverty Income Guidelines are multiplied by the scaling factor).

This step requires an assumption that the degree of change in the CPI between the two years preceding the NLSY79 survey year is a reasonable estimate of the change that will occur between the year immediately previous and the actual NLSY79 survey year. The accuracy of these projections varies. All may be considered reasonable. However, some figures are more precise than others.

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POVERTY INCOME GUIDELINE TABLES

Copies of the computed Poverty Income Guidelines 1980-1986 and the federal Poverty Income Guidelines for 1979, 1987 and subsequent years are part of this documentation.

Questions about the use of the poverty guidelines in one of the outlying jurisdictions (Puerto Rico, the U.S. Virgin Islands, American Samoa, Guam, the Marshall Islands, the Federated States of Micronesia, the Commonwealth of the North Marianas, and Palau) by a Federal program serving any of those jurisdictions should be referred to the Federal office which is responsible for the individual program involved.

1978 Poverty Income Guidelines (applicable for survey year 1979)

Non-Farm

Farm

Size of family unit

Contiguous (48) states and District of Columbia

Alaska

Hawaii

Contiguous (48) states and District of Columbia

Alaska

Hawaii

1

$ 3,400

$ 4,270

$ 3,930

$ 2,910

$ 3,650

$ 3,350

2

4,500

5,640

5,910

3,840

4,810

4,420

3

5,600

7,010

6,450

4,770

5,970

5,490

4

6,700

8,380

7,710

5,700

7,130

6,560

5

7,800

9,750

8,970

6,630

8,290

7,630

6

8,900

11,120

10,230

7,560

9,450

8,700

Each add'l person

$ 1,100

$ 1,370

$ 1,260

$ 930

$ 1,160

$ 1,070

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1979 Poverty Income Guidelines (applicable for survey year 1980)

Non-Farm

Farm

Size of family unit

Contiguous (48) states and District of Columbia

Alaska

Hawaii

Contiguous (48) states and District of Columbia

Alaska

Hawaii

1

$3,770

$4,740

$4,350

$3,220

$4,030

$3,690

2

5,000

6,270

5,760

4,260

5,330

4,890

3

6,230

7,800

7,170

5,300

6,630

6,090

4

7,460

9,330

8,580

6,340

7,930

7,290

5

8,690

10,860

9,990

7,380

9,230

8,490

6

9,920

12,390

11,400

8,420

10,530

9,690

7

11,150

13,920

12,810

9,460

11,830

10,890

8

12,380

15,450

14,220

10,500

13,130

12,090

9

13,610

16,980

15,630

11,540

14,430

13,290

10

14,840

18,510

17,040

12,580

15,730

14,490

11

16,070

20,040

18,450

13,620

17,030

15,690

12

17,300

21,570

19,860

14,660

18,330

16,890

13

18,530

23,100

21,270

15,700

19,630

18,090

14

19,760

24,630

22,680

16,740

20,930

19,290

15

20,990

26,160

24,090

17,780

22,230

20,490

16

22,220

27,690

25,500

18,820

23,530

21,690

17

23,450

29,220

26,910

19,860

24,830

22,890

18

24,680

30,750

28,320

20,900

26,130

24,090

19

25,910

32,280

29,730

21,940

27,430

25,290

20

27,140

33,810

31,140

22,980

28,730

26,490

Each add'l person

$ 1230

$ 1530

$ 1410

$ 1040

$ 1300

$ 1200

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1980 Poverty Income Guidelines (applicable for survey year 1981)

Non-Farm

Farm

Size of family unit

Contiguous (48) states and District of Columbia

Alaska

Hawaii

Contiguous (48) states and District of Columbia

Alaska

Hawaii

1

$ 4,320

$ 5,400

$ 4,970

$ 3,690

$ 4,660

$ 4,270

2

5,700

7,130

6,560

4,860

6,110

5,610

3

7,080

8,860

8,150

6,030

7,560

6,950

4

8,460

10,590

9,740

7,200

9,010

8,290

5

9,840

12,320

11,330

8,370

10,460

9,630

6

11,220

14,050

12,900

9,540

11,910

10,970

7

12,600

15,780

14,510

10,710

13,360

12,310

8

13,980

17,510

16,100

11,880

14,810

13,650

9

15,360

19,240

17,690

13,050

16,260

14,990

10

16,740

20,970

19,280

14,220

17,710

16,330

11

18,120

22,700

20,870

15,390

19,160

17,670

12

19,500

24,430

22,460

16,560

20,610

19,010

13

20,880

26,160

24,050

17,730

22,060

20,350

14

22,260

27,890

25,640

18,900

23,510

21,690

15

23,640

29,620

27,230

20,070

24,960

23,030

16

25,020

31,350

28,820

21,240

26,410

24,370

17

26,400

33,080

30,410

22,410

27,860

25,710

18

27,780

34,810

32,000

23,580

29,310

27,050

19

29,160

36,540

33,590

24,750

30,760

28,390

20

30,540

38,270

35,180

25,920

32,210

29,730

Each add'l person

$ 1,380

$ 1,730

$ 1,590

$ 1,170

$ 1,450

$ 1,340

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1981 Poverty Income Guidelines (applicable for survey year 1982)

Non-Farm

Farm

Size of family unit

Contiguous (48) states and District of Columbia

Alaska

Hawaii

Contiguous (48) states and District of Columbia

Alaska

Hawaii

1

$ 4,320

$ 5,400

$ 4,970

$ 3,690

$ 4,660

$ 4,270

2

5,700

7,130

6,560

4,860

6,110

5,610

3

7,080

8,860

8,150

6,030

7,560

6,950

4

8,460

10,590

9,740

7,200

9,010

8,290

5

9,840

12,320

11,330

8,370

10,460

9,630

6

11,220

14,050

12,900

9,540

11,910

10,970

7

12,600

15,780

14,510

10,710

13,360

12,310

8

13,980

17,510

16,100

11,880

14,810

13,650

9

15,360

19,240

17,690

13,050

16,260

14,990

10

16,740

20,970

19,280

14,220

17,710

16,330

11

18,120

22,700

20,870

15,390

19,160

17,670

12

19,500

24,430

22,460

16,560

20,610

19,010

13

20,880

26,160

24,050

17,730

22,060

20,350

14

22,260

27,890

25,640

18,900

23,510

21,690

15

23,640

29,620

27,230

20,070

24,960

23,030

16

25,020

31,350

28,820

21,240

26,410

24,370

17

26,400

33,080

30,410

22,410

27,860

25,710

18

27,780

34,810

32,000

23,580

29,310

27,050

19

29,160

36,540

33,590

24,750

30,760

28,390

20

30,540

38,270

35,180

25,920

32,210

29,730

Each add'l person

$ 1,380

$ 1,730

$ 1,590

$ 1,170

$ 1,450

$ 1,340

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1982 Poverty Income Guidelines (applicable for survey year 1983)

Non-Farm

Farm

Size of family unit

Contiguous (48) states and District of Columbia

Alaska

Hawaii

Contiguous (48) states and District of Columbia

Alaska

Hawaii

1

$ 4,910

$ 6,160

$ 5,670

$ 4,200

$ 5,290

$ 4,850

2

6,530

8,180

7,530

5,570

6,990

6,420

3

8,150

10,200

9,390

6,940

8,690

7,990

4

9,770

12,220

11,250

8,310

10,390

9,560

5

11,390

14,240

13,110

9,680

12,090

11,130

6

13,010

16,260

14,970

11,050

13,790

12,700

7

14,630

18,280

16,830

12,420

15,490

14,270

8

16,250

20,300

18,690

13,790

17,190

15,840

9

17,870

22,320

20,550

15,160

18,890

17,410

10

19,490

24,340

22,410

16,530

20,590

18,980

11

21,110

26,360

24,270

17,900

22,290

20,550

12

22,730

28,380

26,130

19,270

23,990

22,120

13

24,350

30,400

27,990

20,640

25,690

23,690

14

25,970

32,420

29,850

22,010

27,390

25,260

15

27,590

34,440

31,710

23,380

29,090

26,830

Each add'l person

$ 1,620

$ 2,020

$ 1,860

$ 1,370

$ 1,700

$ 1,570

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1983 Poverty Income Guidelines (applicable for survey year 1984)

Size of family unit

Contiguous (48) states and District of Columbia

Alaska

Hawaii

1

$ 5,010

$ 6,280

$ 6,790

2

6,750

8,450

7,780

3

8,490

10,620

9,770

4

10,230

12,790

11,760

5

11,970

14,960

13,750

6

13,710

17,130

15,740

7

15,450

19,300

17,730

8

17,190

21,470

19,720

9

18,930

23,640

21,710

10

20,670

25,810

23,700

11

22,410

27,980

25,690

12

24,150

30,150

27,680

13

25,890

32,320

29,670

14

27,630

34,490

31,660

15

29,370

36,660

33,650

Each add'l person

$ 1,740

$ 2,170

$ 1,990

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1984 Poverty Income Guidelines (applicable for survey year 1985)

Size of family unit

Contiguous (48) states and District of Columbia

Alaska

Hawaii

1

$ 5,180

$ 6,500

$ 5,970

2

6,990

8,760

8,050

3

8,800

11,020

10,130

4

10,610

13,280

12,210

5

12,420

15,540

14,290

6

14,230

17,800

16,370

7

16,040

20,060

18,450

8

17,850

22,320

20,530

9

19,660

24,580

22,610

10

21,470

26,840

24,690

11

23,280

29,100

26,770

12

25,090

31,360

28,850

13

26,900

33,620

30,930

14

28,710

35,880

33,010

15

30,520

38,140

35,090

16

32,330

40,400

37,170

17

34,140

42,660

39,250

18

35,950

44,920

41,330

19

37,760

47,180

43,410

20

39,570

49,440

45,490

Each add'l person

$ 1,810

$ 2,260

$ 2,080

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1985 Poverty Income Guidelines (applicable for survey year 1986)

Size of family unit

Contiguous (48) states and District of Columbia

Alaska

Hawaii

1

$ 5,430

$ 6,790

$ 6,250

2

7,290

9,120

8,390

3

9,150

11,450

10,530

4

11,010

13,780

12,670

5

12,870

16,110

14,810

6

14,730

18,440

16,950

7

16,590

20,770

19,090

8

18,450

23,100

21,230

9

20,310

25,430

23,370

10

22,170

27,760

25,510

11

24,030

30,090

27,650

12

25,890

32,420

29,790

13

27,750

34,750

31,930

14

29,610

37,080

34,070

15

31,470

39,410

36,210

16

33,330

41,740

38,350

17

35,190

44,070

40,490

18

37,050

46,400

42,630

19

38,910

48,730

44,770

20

40,770

51,060

46,910

Each add'l person

$ 1,860

$ 2,330

$ 2,140

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1986 Poverty Guidelines (applicable for survey year 1987)

Size of family unit

Contiguous (48) states and District of Columbia

Alaska

Hawaii

1

$ 5,550

$ 6,680

$ 6,310

2

7,400

9,240

8,500

3

9,300

11,620

10,690

4

11,200

14,000

12,880

5

13,100

16,380

15,070

6

15,000

18,760

17,260

7

16,900

21,140

19,450

8

18,800

23,520

21,640

Each add'l person

$ 1,900

$ 2,380

$ 2,190

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1987 Poverty Guidelines (applicable for survey year 1988)

Size of family unit

Contiguous (48) states and District of Columbia

Alaska

Hawaii

1

$ 5,770

$ 7,210

$ 6,650

2

7,730

9,660

8,900

3

9,690

12,110

11,150

4

11,650

14,560

13,400

5

13,610

17,010

15,650

6

15,570

19,460

17,900

7

17,530

21,910

20,150

8

19,490

24,360

22,400

Each add'l person

$ 1,960

$ 2,450

$ 2,250

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1988 Poverty Income Guidelines (applicable for survey year 1989)

Size of family unit

Contiguous (48) states and District of Columbia

Alaska

Hawaii

1

$ 5,980

$ 7,480

$ 6,870

2

8,020

10,030

9,220

3

10,060

12,580

11,570

4

12,100

15,130

13,920

5

14,140

17,680

16,270

6

16,180

20,230

18,620

7

18,220

22,780

20,970

8

20,260

25,330

23,320

Each add'l person

$ 2,040

$ 2,550

$ 2,350

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1989 Poverty Income Guidelines (applicable for survey year 1990)

Size of family unit

Contiguous (48) states and District of Columbia

Alaska

Hawaii

1

$ 6,280

$ 7,840

$ 7,230

2

8,420

10,520

9,690

3

10,560

13,200

12,150

4

12,700

15,880

14,610

5

14,840

18,560

17,070

6

16,980

21,240

19,530

7

19,120

23,920

21,990

8

21,260

26,600

24,450

Each add'l person

$ 2,140

$ 2,680

$ 2,460

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1990 Poverty Income Guidelines (applicable for survey year 1991)

Size of family unit

Contiguous (48) states and District of Columbia

Alaska

Hawaii

1

$ 6,620

$ 8,290

$ 7,610

2

8,880

11,110

10,210

3

11,140

13,930

12,810

4

13,400

16,750

15,410

5

15,660

19,570

18,010

6

17,920

22,390

20,610

7

20,180

25,210

23,210

8

22,440

28,030

25,810

Each add'l person

$ 2,260

$ 2,820

$ 2,600

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1991 Poverty Income Guidelines (applicable for survey year 1992)

Size of family unit

Contiguous (48) states and District of Columbia

Alaska

Hawaii

1

$ 6,810

$ 8,500

$ 7,830

2

9,190

11,480

10,570

3

11,570

14,460

13,310

4

13,950

17,440

16,050

5

16,330

20,420

18,790

6

18,710

23,400

21,530

7

21,090

26,380

24,270

8

23,470

29,360

27,010

Each add'l person

$ 2,380

$ 2,980

$ 2,740

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1992 Poverty Income Guidelines (applicable for survey year 1993)

Size of family unit

Contiguous (48) states and District of Columbia

Alaska

Hawaii

1

$ 7,360

$ 9,200

$ 8,470

2

9,840

12,300

11,320

3

12,320

15,400

14,170

4

14,800

18,500

17,020

5

17,280

21,600

19,870

6

19,760

24,700

22,720

7

22,240

27,800

25,570

8

24,720

30,900

28,420

Each add'l person

$ 2,480

$ 3,100

$ 2,850

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1993 Poverty Income Guidelines (applicable for survey year 1994)

Size of family unit

Contiguous (48) states and District of Columbia

Alaska

Hawaii

1

$ 7,360

$ 9,200

$ 8,470

2

9,840

12,300

11,320

3

12,320

15,400

14,170

4

14,800

18,500

17,020

5

17,280

21,600

19,870

6

19,760

24,700

22,720

7

22,240

27,800

25,570

8

24,720

30,900

28,420

Each add'l person

$ 2,480

$ 3,100

$ 2,850

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1995 Poverty Income Guidelines (applicable for survey year 1996)

Size of family unit

Contiguous (48) states and District of Columbia

Alaska

Hawaii

1

$ 7,470

$ 9,340

$ 8,610

2

10,030

12,540

11,550

3

12,590

15,740

14,490

4

15,150

18,940

17,430

5

17,710

22,140

20,370

6

20,270

25,340

23,310

7

22,830

28,540

26,250

8

25,390

31,740

29,190

Each add'l person

$ 2,560

$ 3,200

$ 2,940

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1997 Poverty Income Guidelines (applicable for survey year 1998)

Size of family unit

Contiguous (48) states and District of Columbia

Alaska

Hawaii

1

$ 7,890

$ 9,870

$ 9,070

2

10,610

13,270

12,200

3

13,330

16,670

15,330

4

16,050

20,070

18,460

5

18,770

23,470

21,590

6

21,490

26,870

24,720

7

24,210

30,270

27,850

8

26,930

33,670

30,980

Each add'l person

$ 2,720

$ 3,400

$ 3,130

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1999 Poverty Income Guidelines (applicable for survey year 2000)

Size of family unit

Contiguous (48) states and District of Columbia

Alaska

Hawaii

1

$ 8,240

$10,320

$ 9490

2

11,060

13,840

12,730

3

13,880

17,360

15,970

4

16,700

20,880

19,210

5

19,520

24,400

22,450

6

22,340

27,920

25,690

7

25,160

31,440

28,930

8

27,980

34,960

32,170

Each add'l person

$ 2,820

$ 3,520

$ 3,240

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2001 Poverty Income Guidelines (applicable for survey year 2002)

Size of family unit

Contiguous (48) states and District of Columbia

Alaska

Hawaii

1

$ 8,590

$10,730

$ 9,890

2

11,610

14,510

13,360

3

14,630

18,290

16,830

4

17,650

22,070

20,300

5

20,670

25,850

23,770

6

23,690

29,630

27,240

7

26,710

33,410

30,710

8

29,730

37,190

34,180

Each add'l person

$ 3,020

$ 3,780

$ 3,470

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2003 Poverty Income Guidelines (applicable for survey year 2004)

Size of family unit

Contiguous (48) states and District of Columbia

Alaska

Hawaii

1

$ 8,980 $11,210 $10,330

2

12,120 15,140 13,940

3

15,260 19,070 17,550

4

18,400 23,000 21,160

5

21,540 26,930 24,770

6

24,680 30,860 28,380

7

27,820 34,790 31,990

8

30,960 38,720 35,600

Each add'l person

 3,140  3,930  3,610

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2005 Poverty Income Guidelines (applicable for survey year 2006)

Size of family unit

Contiguous (48) states and District of Columbia

Alaska

Hawaii

1

$ 9,570 $11,950 $11,010

2

12,830 16,030 14,760

3

16,090 20,110 18,510

4

19,350 24,190 22,260

5

22,610 28,270 26,010

6

25,870 32,350 29,760

7

29,130 36,430 33,510

8

32,390 40,510 37,260

Each add'l person

 3,260 4,080  3,750

 


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