1959 42 4,597,285 3.563 164,000 1958 43 4,518,648 3.507 158,000 1957 44 4,668,310 3.439 161,000 1956 45 4,464,137 3.356 150,000 1955 46 4,227,667 3.267 138,000 1954 47 4,192,570 3.180 133,000 1953 48 3,863,432 3.068 119,000 1952 49 4,131,847 2.953 122,000 1951 50 3,838,209 2.819 108,000 1950 51 3,595,173 2.688 97,000 1949 52 3,516,992 2.584 91,000 1948 53 3,497,820 2.475 87,000 1947 54 3,668,994 2.397 88,000 1946 55 3,180,818 2.341 74,000 1945 56 2,746,790 2.280 63,000 1944 57 2,788,492 2.220 62,000 1943 58 2,665,273 2.173 58,000 1942 59 2,710,967 2.131 58,000 1941 60 2,398,614 2.086 50,000 1940-1931 61-70 19,778,402 ... 377,000 1930-1901 71 or older 23,755,091 ... 384,000 [a] The number of U.S. residents on December 31, 2001, by age, were based on projections for July 1, 2000, and July 1, 2001. (See Projections of the Resident Population by Age, Sex,, Race and Hispanic Origin: 1999 to 2100, U.S. Census Bureau, NP-D1-A, middle series.) The data were adjusted for the undercount in the 1990 decennial census. [b] Based on separate generation life tables starting in the year of birth of the persons at each year of age. (See Appendix tables 2 and 3 for calculations for selected years of birth.) [c] Estimates were calculated by multiplying column (1) by column (2) and rounded to the nearest 1,000. ... Not shown, because all calculations were based on rates for single years of age. ---------------------------------------------------------------------- To model the incarceration experience of the adult resident population in 2001, a separate generation life table was needed for each birth cohort born from 1901 to 1983. For example, of those born in 1980 and alive in 2001, an estimated 1.510% had ever gone to prison (Appendix table 1, column 2). Multiplying by 4,140,721 U.S. residents age 21 in 2001 (column 1), produced an estimate of 63,000 persons, age 21 in 2001, who had ever been incarcerated (column 3).