TABLE 3.5 Age-Sex Structure of the U.S. Population in 1995 in the Absence of Migration Since 1950

 

Hypothetical Population Under Assumption of No Migration

 

Number (thousands)

Percentage of Total

Observed Population Number (thousands)

Percentage of Total

Ratio of Observed to Hypothetical Population

Age Group

Males

Females

Males

Females

Males

Females

Males

Females

Males

Females

0-9

17,065

16,583

7.6

7.4

19,862

18,941

7.6

7.2

99.6

97.7

10-19

15,436

15,092

6.9

6.7

18,952

18,038

7.2

6.9

104.9

102.4

20-29

15,506

15,276

6.9

6.8

18,593

18,263

7.1

6.9

102.5

102.2

30-39

18,487

18,442

8.2

8.2

21,995

22,166

8.4

8.4

101.8

102.8

40-49

16,010

16,423

7.1

7.3

18,560

19,129

7.1

7.3

99.2

99.6

50-59

10,482

11,147

4.7

5.0

11,994

12,782

4.5

4.9

97.4

98.0

60-69

8,532

10,146

3.8

4.5

9,227

10,745

3.5

4.1

92.4

91.5

70-79

5,860

8,015

2.6

3.6

6,555

8,965

2.5

3.4

95.4

95.2

80+

2,061

4,306

.9

1.9

2,622

5,478

1.0

2.1

109.7

108.3

Total

109,439

115,330

48.7

51.3

128,311

134,509

48.8

51.2

100.3

99.7

Both Sexes

224,769

100.0

262,820

100.0

100.0

 

Sources: The hypothetical 1995 population, under the assumption of no migration since 1950. is derived by surviving the 1950 population, by age and sex, using period life tables and adding annual births using period fertility rates, and surviving births, by age and sex until 1995. The observed 1995 population is taken from estimates of the U.S. Bureau of the Census (1996a:Table 2).



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