Table V.A2--Social Security Area Population as of July 1 and Dependency Ratios
Calendar Years 1950-2003
Historical Period

Population (in thousands)
Dependency ratio
Calendar
year		 Under 20 20-64 65 and
over		 Total
Aged 1 Total 2
1950 54,466 92,841 12,811 160,118
0.138 0.725
1951 56,419 94,102 13,287 163,808
.141 .741
1952 57,923 94,727 13,719 166,368
.145 .756
1953 59,600 95,209 14,168 168,978
.149 .775
1954 61,398 95,656 14,632 171,687
.153 .795
1955 63,261 96,176 15,073 174,510
.157 .814
1956 65,313 97,075 15,490 177,878
.160 .832
1957 67,401 97,992 15,931 181,324
.163 .850
1958 69,374 98,538 16,393 184,305
.166 .870
1959 71,256 99,129 16,851 187,236
.170 .889
1960 73,076 99,818 17,278 190,172
.173 .905
1961 74,858 100,614 17,679 193,151
.176 .920
1962 76,444 101,576 18,062 196,082
.178 .930
1963 77,766 102,703 18,407 198,876
.179 .936
1964 78,997 103,796 18,746 201,539
.181 .942
1965 80,132 104,795 19,091 204,018
.182 .947
1966 80,743 106,116 19,422 206,281
.183 .944
1967 80,724 107,932 19,766 208,421
.183 .931
1968 80,616 109,755 20,123 210,494
.183 .918
1969 80,571 111,477 20,499 212,547
.184 .907
1970 80,684 113,158 20,923 214,765
.185 .898
1971 80,755 114,913 21,371 217,039
.186 .889
1972 80,502 116,784 21,819 219,105
.187 .876
1973 79,961 118,718 22,276 220,955
.188 .861
1974 79,247 120,742 22,767 222,755
.189 .845
1975 78,437 122,857 23,305 224,599
.190 .828
1976 77,576 125,054 23,871 226,501
.191 .811
1977 76,700 127,366 24,457 228,524
.192 .794
1978 75,884 129,750 25,053 230,687
.193 .778
1979 75,161 132,117 25,653 232,932
.194 .763
1980 74,570 134,430 26,235 235,234
.195 .750
1981 74,128 136,700 26,806 237,634
.196 .738
1982 73,790 138,903 27,426 240,119
.197 .729
1983 73,498 141,042 28,026 242,566
.199 .720
1984 73,266 143,098 28,594 244,958
.200 .712
1985 73,249 144,934 29,197 247,380
.201 .707
1986 73,454 146,538 29,860 249,852
.204 .705
1987 73,795 148,072 30,498 252,365
.206 .704
1988 74,220 149,645 31,068 254,933
.208 .704
1989 74,698 151,288 31,639 257,625
.209 .703
1990 75,233 153,034 32,193 260,461
.210 .702
1991 75,928 154,744 32,709 263,382
.211 .702
1992 76,871 156,250 33,234 266,355
.213 .705
1993 77,920 157,678 33,690 269,288
.214 .708
1994 78,885 159,151 34,060 272,096
.214 .710
1995 79,734 160,669 34,398 274,801
.214 .710
1996 80,512 162,333 34,678 277,523
.214 .710
1997 81,172 164,193 34,894 280,259
.213 .707
1998 81,733 166,128 35,044 282,906
.211 .703
1999 82,198 168,140 35,184 285,522
.209 .698
2000 82,545 170,350 35,428 288,322
.208 .693
2001 82,871 172,820 35,720 291,411
.207 .686
2002 83,171 175,211 35,944 294,326
.205 .680
2003 83,408 177,282 36,154 296,844
.204 .674
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.

Notes:
1. Totals do not necessarily equal the sums of rounded components.
2. Historical data are subject to revision.

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