Table V.A2.--Social Security Area Population as of July 1 and Dependency Ratios,
by Broad Age Group, Calendar Years 1950-2002
Historical Period

Population (in thousands)
Dependency ratio
Calendar
year		 Under 20 20-64 65 and
over		 Total
Aged 1 Total 2
1950 54,468 92,901 12,812 159,386   0.138 0.724
1951 56,420 94,163 13,287 163,866   .141 .740
1952 57,924 94,787 13,719 166,425   .145 .756
1953 59,602 95,268 14,169 169,034   .149 .774
1954 61,400 95,714 14,633 171,742   .153 .794
1955 63,262 96,234 15,074 174,565   .157 .814
1956 65,314 97,132 15,491 177,933   .159 .832
1957 67,401 98,047 15,932 181,375   .162 .850
1958 69,374 98,589 16,394 184,351   .166 .870
1959 71,256 99,175 16,852 187,277   .170 .888
1960 73,076 99,859 17,279 190,081   .173 .905
1961 74,858 100,653 17,680 193,188   .176 .919
1962 76,445 101,614 18,063 196,122   .178 .930
1963 77,768 102,741 18,408 198,917   .179 .936
1964 78,999 103,834 18,748 201,580   .181 .941
1965 80,134 104,833 19,093 204,059   .182 .947
1966 80,745 106,154 19,423 206,322   .183 .944
1967 80,725 107,970 19,767 208,463   .183 .931
1968 80,618 109,794 20,125 210,536   .183 .918
1969 80,572 111,517 20,500 212,589   .184 .906
1970 80,685 113,194 20,921 214,800   .185 .898
1971 80,756 114,940 21,362 217,058   .186 .888
1972 80,502 116,803 21,804 219,109   .187 .876
1973 79,962 118,730 22,254 220,946   .187 .861
1974 79,248 120,749 22,736 222,734   .188 .845
1975 78,438 122,862 23,266 224,566   .189 .828
1976 77,577 125,057 23,823 226,457   .190 .811
1977 76,701 127,369 24,400 228,470   .192 .794
1978 75,885 129,754 24,987 230,625   .193 .777
1979 75,162 132,122 25,577 232,861   .194 .762
1980 74,570 134,431 26,149 235,150   .195 .749
1981 74,128 136,691 26,712 237,531   .195 .738
1982 73,790 138,885 27,322 239,997   .197 .728
1983 73,498 141,015 27,914 242,428   .198 .719
1984 73,266 143,065 28,473 244,803   .199 .711
1985 73,248 144,897 29,065 247,210   .201 .706
1986 73,452 146,501 29,715 249,668   .203 .704
1987 73,793 148,037 30,339 252,169   .205 .703
1988 74,218 149,615 30,894 254,726   .206 .703
1989 74,696 151,263 31,450 257,408   .208 .702
1990 75,326 153,060 32,022 260,408   .209 .701
1991 76,239 154,831 32,596 263,666   .211 .703
1992 77,372 156,410 33,183 266,965   .212 .707
1993 78,546 157,964 33,705 270,215   .213 .711
1994 79,587 159,596 34,152 273,335   .214 .713
1995 80,486 161,290 34,572 276,348   .214 .713
1996 81,291 163,166 34,917 279,374   .214 .712
1997 81,988 165,216 35,198 282,403   .213 .709
1998 82,581 167,332 35,414 285,327   .212 .705
1999 83,077 169,489 35,633 288,199   .210 .700
2000 83,492 171,657 35,866 291,015   .209 .695
2001 83,812 173,940 36,043 293,795   .207 .689
2002 84,080 176,280 36,249 296,610   .206 .683
1 Population aged 65 and over, divided by population aged 20-64.
2 Sum of population aged 65 and over, and population under age 20, divided by population aged 20-64.

Note: Totals do not necessarily equal the sums of rounded components.
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