What Can We Learn from Analyzing Historical Data on Social Security Entitlements?

by Joyce Manchester and Jae Song
Social Security Bulletin, Vol. 71 No. 4, 2011
Table equivalent for Chart 1. Percentage distribution of new retired-worker beneficiaries by age at entitlement (excluding individuals automatically converted from DI to retirement benefits at FRA), 1999 and 2008
Age at entitlement 1999 2008
62 58.34 51.25
63 7.36 7.90
64 11.77 9.75
65 15.97 25.72
66 1.83 1.88
67–69 2.94 1.80
70 or older 1.80 1.71
SOURCE: Authors' calculations based on SSA (2011a, Table 6.B5.1).
NOTE: Rounded components of percentage distributions do not necessarily sum to 100.
Table equivalent for Chart 2. Percentage distribution of new retired-worker beneficiaries by age at entitlement (excluding individuals automatically converted from DI to retirement benefits at FRA), by sex, 2008
Age at entitlement Men Women
62 48.63 54.11
63 8.11 7.67
64 9.59 9.92
65 29.45 21.65
66 1.94 1.80
67–69 1.48 2.14
70 or older 0.80 2.71
SOURCE: Authors' calculations based on SSA (2011a, Table 6.B5.1).
NOTE: Rounded components of percentage distributions do not necessarily sum to 100.
Table equivalent for Chart 3. New retired-worker beneficiaries, by age in years and months at entitlement, 1910, 1920, and 1936 birth cohorts (in percent)
Age (years, months) 1910 1920 1936
62y, 0m 31.57 2.81 2.91
62y, 1m 3.29 40.62 42.45
62y, 2m 1.77 2.41 1.99
62y, 3m 1.60 1.92 1.54
62y, 4m 1.44 1.66 1.32
62y, 5m 1.30 1.40 1.12
62y, 6m 1.16 1.23 0.98
62y, 7m 1.05 1.09 0.86
62y, 8m 0.99 1.00 0.80
62y, 9m 0.98 1.00 0.79
62y, 10m 0.96 0.97 0.78
62y, 11m 0.87 0.89 0.76
63y, 0m 1.09 1.01 0.90
63y, 1m 1.07 1.02 0.90
63y, 2m 0.79 0.72 0.67
63y, 3m 0.76 0.68 0.64
63y, 4m 0.77 0.67 0.60
63y, 5m 0.74 0.63 0.58
63y, 6m 0.74 0.61 0.56
63y, 7m 0.71 0.58 0.55
63y, 8m 0.94 0.55 0.50
63y, 9m 2.39 0.56 0.60
63y, 10m 1.99 0.57 0.64
63y, 11m 1.72 0.54 0.55
64y, 0m 1.76 0.64 0.65
64y, 1m 1.64 0.74 0.66
64y, 2m 1.38 0.68 0.53
64y, 3m 1.42 1.14 0.52
64y, 4m 1.40 1.26 0.52
64y, 5m 1.34 1.35 0.55
64y, 6m 1.28 1.36 0.64
64y, 7m 1.18 1.34 0.71
64y, 8m 1.16 1.53 1.36
64y, 9m 1.15 2.40 3.29
64y, 10m 1.23 2.25 2.98
64y, 11m 1.77 2.31 2.24
65y, 0m 18.85 12.08 16.24
65y, 1m 0.21 0.30 0.21
65y, 2m 0.16 0.25 0.14
65y, 3m 0.14 0.25 0.14
65y,4m 0.13 0.22 0.14
65y, 5m 0.12 0.22 0.13
65y, 6m 0.13 0.22 0.12
65y, 7m 0.11 0.16 0.10
65y, 8m 0.11 0.16 0.09
65y, 9m 0.13 0.14 0.08
65y, 10m 0.12 0.13 0.08
65y, 11m 0.11 0.12 0.07
66y, 0m 0.11 0.13 0.09
SOURCE: Authors' calculations based on SSA's MBR, 100 percent data.
Table equivalent for Chart 4. Number of men initially entitled to retirement benefits by age in months, 1936–1942 birth cohorts (in thousands)
Age (years, months) Birth cohort
1936 1937 1938 1939 1940 1941 1942
62y, 0m 21.68 22.05 22.95 21.82 22.59 23.19 24.54
62y, 1m 316.43 327.13 332.37 316.44 322.26 329.00 350.20
62y, 2m 16.70 17.51 18.68 17.54 16.61 16.68 19.11
62y, 3m 12.93 13.56 14.91 13.85 13.19 12.97 14.73
62y, 4m 10.99 11.37 11.78 12.52 11.22 11.17 12.34
62y, 5m 9.26 10.08 10.27 10.63 10.08 9.99 10.78
62y, 6m 8.13 8.69 8.87 8.94 9.72 9.12 9.69
62y, 7m 7.10 7.68 7.73 7.99 8.21 7.91 8.54
62y, 8m 6.73 7.00 6.99 7.14 7.01 7.95 7.99
62y, 9m 6.58 7.91 6.69 7.29 6.87 7.63 8.45
62y, 10m 6.49 8.04 6.95 7.33 7.30 7.63 8.69
62y, 11m 6.28 6.79 6.31 6.46 6.41 6.98 7.65
63y, 0m 7.66 8.01 7.67 8.34 8.40 8.88 9.41
63y, 1m 7.71 7.78 7.74 8.13 8.06 9.09 9.60
63y, 2m 5.69 5.57 5.66 5.47 5.56 6.34 6.45
63y, 3m 5.34 5.07 5.28 5.20 5.31 5.79 6.02
63y, 4m 4.92 4.55 4.85 4.99 5.00 5.27 5.44
63y, 5m 4.73 4.38 4.50 4.73 4.69 5.16 5.05
63y, 6m 4.56 4.11 4.41 4.29 4.52 4.97 4.99
63y, 7m 4.55 4.02 4.14 4.09 4.36 4.68 4.64
63y, 8m 4.03 3.68 3.84 3.77 4.02 4.51 4.49
63y, 9m 4.93 3.94 4.22 4.13 4.29 5.08 4.98
63y, 10m 5.30 4.64 4.61 4.56 4.81 5.16 5.51
63y, 11m 4.53 4.08 4.30 4.24 4.41 4.34 4.91
64y, 0m 5.54 5.39 5.56 5.51 5.79 6.23 6.68
64y, 1m 5.70 5.87 5.27 5.18 5.73 6.01 6.69
64y, 2m 4.40 4.71 4.35 3.93 4.30 4.42 5.04
64y, 3m 4.36 4.92 4.85 3.79 4.03 4.03 4.57
64y, 4m 4.38 5.09 4.86 3.80 3.79 3.73 4.36
64y, 5m 4.58 5.23 5.04 4.59 3.86 3.84 4.25
64y, 6m 5.44 6.13 5.51 4.79 4.08 3.79 4.29
64y, 7m 5.94 6.95 5.86 5.05 4.93 4.01 4.29
64y, 8m 11.16 12.53 9.50 7.92 6.99 5.70 6.19
64y, 9m 26.71 32.40 24.13 20.03 17.22 14.72 14.76
64y, 10m 24.57 26.45 26.84 23.39 18.97 17.54 15.26
64y, 11m 19.34 20.38 23.96 19.46 16.91 16.23 15.94
65y, 0m 151.81 147.73 28.52 26.15 22.99 21.52 21.54
65y, 1m 1.89 1.91 17.89 18.88 16.52 17.56 19.33
65y, 2m 1.18 1.30 134.58 15.17 13.29 12.76 14.08
65y, 3m 1.17 1.26 2.49 17.26 16.42 11.95 13.58
65y,4m 1.15 1.22 1.64 128.81 15.77 12.51 12.27
65y, 5m 1.04 1.10 1.36 2.85 18.18 17.19 11.90
65y, 6m 1.00 1.05 1.31 1.88 136.42 17.82 13.14
65y, 7m 0.83 0.87 1.12 1.42 3.03 18.94 17.50
65y, 8m 0.77 0.80 1.00 1.26 1.90 141.08 17.60
65y, 9m 0.68 0.75 0.90 1.19 1.75 3.06 20.41
65y, 10m 0.64 0.66 0.82 1.13 1.43 2.29 164.96
65y, 11m 0.57 0.62 0.75 1.10 1.35 1.83 2.95
66y, 0m 0.69 0.74 0.79 1.11 1.38 1.82 3.27
66y, 1m 0.55 0.57 0.72 1.00 1.23 1.62 2.24
66y, 2m 0.49 0.54 0.84 0.95 1.09 1.54 1.85
66y, 3m 0.50 0.59 0.70 0.95 1.05 1.51 1.77
66y, 4m 0.59 0.59 0.70 1.06 1.16 1.36 1.51
66y, 5m 0.47 0.55 0.64 0.86 0.99 1.32 1.33
66y, 6m 0.52 0.53 0.65 0.84 1.20 1.44 1.16
SOURCE: Authors' calculations based on SSA's MBR, 100 percent data.
Table equivalent for Chart 5. Number of women initially entitled to retirement benefits by age in months, 1936–1942 birth cohorts (in thousands)
Age (years, months) Birth cohort
1936 1937 1938 1939 1940 1941 1942
62y, 0m 20.87 21.43 22.05 21.51 22.14 22.70 24.59
62y, 1m 303.36 313.12 324.23 312.19 317.49 327.44 352.85
62y, 2m 12.31 12.96 14.03 13.81 13.49 13.91 16.54
62y, 3m 9.59 9.98 11.17 10.92 10.93 10.99 12.87
62y, 4m 8.26 8.83 9.07 9.34 9.39 9.60 10.83
62y, 5m 7.10 7.66 7.68 8.33 8.24 8.57 9.42
62y, 6m 6.15 6.77 6.91 6.88 7.52 7.70 8.45
62y, 7m 5.50 5.96 5.81 6.04 6.45 6.75 7.62
62y, 8m 4.91 5.52 5.41 5.52 5.78 6.19 7.13
62y, 9m 4.95 6.40 5.41 5.96 5.91 6.48 7.66
62y, 10m 4.95 6.40 5.75 5.97 6.10 6.78 7.64
62y, 11m 4.78 5.32 5.03 5.30 5.30 6.01 6.71
63y, 0m 5.51 5.94 5.79 6.25 6.70 7.37 8.06
63y, 1m 5.37 5.76 5.53 5.89 6.04 7.48 7.92
63y, 2m 4.07 4.07 4.28 4.41 4.55 5.25 5.71
63y, 3m 4.01 4.01 4.00 4.28 4.51 4.80 5.32
63y, 4m 3.84 3.75 3.71 3.98 4.11 4.70 5.03
63y, 5m 3.70 3.52 3.61 3.75 3.99 4.47 4.66
63y, 6m 3.56 3.33 3.43 3.52 3.83 4.37 4.67
63y, 7m 3.46 3.13 3.20 3.47 3.64 4.25 4.48
63y, 8m 3.25 2.81 3.00 3.10 3.41 3.92 4.19
63y, 9m 3.90 3.03 3.30 3.55 3.64 4.34 4.61
63y, 10m 4.04 3.44 3.67 3.63 4.06 4.45 4.97
63y, 11m 3.43 3.05 3.29 3.24 3.67 4.04 4.40
64y, 0m 3.94 3.65 3.94 3.94 4.57 5.04 5.49
64y, 1m 3.97 3.98 3.66 3.75 4.35 4.71 5.36
64y, 2m 3.36 3.37 3.11 2.91 3.30 3.73 4.11
64y, 3m 3.27 3.52 3.67 2.93 3.27 3.51 4.05
64y, 4m 3.21 3.57 3.58 2.84 3.10 3.24 3.85
64y, 5m 3.48 3.88 3.74 3.52 3.22 3.24 3.60
64y, 6m 3.89 4.37 4.12 3.79 3.40 3.45 3.83
64y, 7m 4.35 4.95 4.73 4.15 4.30 3.56 3.96
64y, 8m 8.66 9.95 7.89 7.22 6.61 5.73 6.63
64y, 9m 21.37 25.80 20.80 18.08 17.00 15.70 16.63
64y, 10m 18.88 20.20 21.41 20.02 17.40 17.12 15.77
64y, 11m 13.33 13.96 18.60 15.71 15.04 15.01 15.48
65y, 0m 85.30 85.04 20.28 19.49 18.81 18.59 19.50
65y, 1m 1.23 1.47 11.61 14.08 12.60 13.96 16.37
65y, 2m 0.82 0.97 78.59 10.99 10.20 10.22 12.09
65y, 3m 0.89 0.99 1.88 11.57 12.43 9.26 11.25
65y,4m 0.86 1.04 1.31 75.70 11.71 9.61 9.81
65y, 5m 0.85 0.93 1.08 2.01 12.74 12.86 9.40
65y, 6m 0.79 0.93 1.01 1.41 79.50 12.93 9.92
65y, 7m 0.65 0.68 0.93 1.15 2.12 12.94 13.19
65y, 8m 0.56 0.65 0.87 1.07 1.44 81.30 12.74
65y, 9m 0.53 0.60 0.68 0.99 1.29 2.14 13.79
65y, 10m 0.55 0.58 0.68 1.04 1.22 1.61 91.04
65y, 11m 0.50 0.53 0.62 0.77 1.10 1.38 2.23
66y, 0m 0.60 0.67 0.62 0.85 1.16 1.43 2.60
66y, 1m 0.47 0.56 0.63 0.69 0.93 1.13 1.78
66y, 2m 0.46 0.51 0.67 0.69 0.82 1.12 1.56
66y, 3m 0.52 0.54 0.72 0.72 0.92 1.06 1.53
66y, 4m 0.50 0.56 0.67 0.88 0.85 0.99 1.36
66y, 5m 0.51 0.63 0.64 0.77 0.83 0.97 1.21
66y, 6m 0.50 0.58 0.67 0.78 0.98 1.19 1.02
SOURCE: Authors' calculations based on SSA's MBR, 100 percent data.
Table equivalent for Chart 6. Cumulative shares of each birth cohort entitled to retirement benefits by the time they reach selected ages, 1890–1936 cohorts
Birth cohort 62y, 6m 64y, 6m 65y, 6m 67y, 6m
1890 0.00 0.01 40.01 76.11
1891 0.00 0.02 42.34 78.45
1892 0.00 8.99 48.51 80.22
1893 0.00 15.61 51.50 82.78
1894 6.70 16.72 55.50 85.99
1895 10.89 17.13 63.39 88.21
1896 11.01 18.06 73.12 89.39
1897 11.47 38.62 75.24 93.46
1898 12.74 45.73 77.25 97.31
1899 28.06 48.92 79.61 97.52
1900 31.68 51.13 92.86 97.61
1901 31.38 55.57 92.52 97.66
1902 35.31 57.30 93.26 97.86
1903 33.55 56.82 93.63 97.95
1904 33.13 56.97 94.11 98.23
1905 34.01 57.93 94.65 98.51
1906 34.35 58.68 95.20 98.64
1907 36.24 60.43 95.57 98.76
1908 37.88 65.07 95.88 98.83
1909 40.05 68.95 95.95 98.86
1910 42.13 70.90 96.24 98.90
1911 44.60 73.32 96.41 98.93
1912 46.42 74.68 96.53 98.89
1913 48.24 71.15 96.08 98.61
1914 48.98 71.26 96.44 98.64
1915 46.70 72.28 95.99 98.67
1916 46.23 72.02 94.58 98.34
1917 47.35 71.96 94.71 98.37
1918 49.09 72.45 94.78 98.34
1919 52.39 72.97 94.45 98.17
1920 52.05 72.33 94.24 97.98
1921 52.86 72.79 94.01 97.84
1922 53.10 73.01 93.23 97.62
1923 54.00 73.27 92.74 97.55
1924 55.11 73.32 92.35 97.60
1925 54.91 73.39 92.23 97.08
1926 54.46 70.23 92.42 97.07
1927 54.19 70.40 92.84 96.97
1928 53.74 70.53 92.65 96.66
1929 54.20 70.58 92.42 96.55
1930 54.84 70.82 92.05 96.43
1931 54.76 70.59 91.49 96.05
1932 55.42 70.58 91.15 96.73
1933 55.27 69.53 90.43 97.45
1934 54.58 68.86 90.12 97.50
1935 53.14 68.07 94.84 97.42
1936 52.31 68.05 94.87 97.34
SOURCE: Authors' calculations based on SSA's MBR, 100 percent data.
NOTE: Retirement benefits for those aged 62–64 were first offered to women in 1956 and to men in 1961.
Table equivalent for Chart 7. Shares of each birth cohort entitled to DI benefits by age, biennial cohorts 1944–1954
Age Biennial birth cohort
1944 1946 1948 1950 1952 1954
25 0.06 0.08 0.10 0.12 0.09 0.09
26 0.06 0.10 0.12 0.11 0.09 0.08
27 0.07 0.12 0.12 0.10 0.09 0.08
28 0.09 0.14 0.11 0.09 0.09 0.09
29 0.11 0.15 0.10 0.09 0.09 0.11
30 0.13 0.13 0.09 0.09 0.10 0.12
31 0.13 0.12 0.09 0.08 0.12 0.13
32 0.13 0.11 0.09 0.10 0.13 0.14
33 0.11 0.12 0.09 0.12 0.15 0.15
34 0.11 0.12 0.10 0.14 0.16 0.18
35 0.11 0.11 0.12 0.15 0.17 0.22
36 0.11 0.13 0.14 0.17 0.20 0.28
37 0.11 0.16 0.16 0.18 0.24 0.32
38 0.12 0.19 0.17 0.21 0.30 0.33
39 0.15 0.21 0.19 0.26 0.35 0.33
40 0.17 0.24 0.22 0.32 0.35 0.33
41 0.20 0.25 0.27 0.36 0.36 0.32
42 0.22 0.30 0.35 0.38 0.36 0.33
43 0.25 0.36 0.39 0.38 0.35 0.33
44 0.28 0.44 0.40 0.38 0.36 0.37
45 0.34 0.51 0.41 0.39 0.38 0.41
46 0.42 0.53 0.42 0.39 0.41 0.45
47 0.48 0.54 0.42 0.41 0.44 0.50
48 0.50 0.56 0.42 0.44 0.50 0.54
49 0.52 0.58 0.46 0.50 0.56 0.56
50 0.66 0.75 0.62 0.70 0.81 0.81
51 0.60 0.68 0.59 0.70 0.72 0.65
52 0.61 0.74 0.66 0.74 0.72 0.61
53 0.63 0.79 0.72 0.77 0.70  
54 0.69 0.89 0.79 0.76 0.69  
55 0.93 1.23 1.08 1.02    
56 0.89 1.17 0.91 0.82    
57 0.99 1.21 0.90      
58 1.05 1.19 0.87      
59 1.07 1.18        
60 1.11 1.20        
61 0.92          
SOURCE: Authors' calculations based on SSA's MBR, 100 percent data.
NOTE: Percentages are scaled to each cohort's age-50 population.
Table equivalent for Chart 8. Shares of each birth cohort entitled to DI benefits in 1969–2006, biennial cohorts 1944–1954
Year Biennial birth cohort
1944 1946 1948 1950 1952 1954
1969 0.06          
1970 0.06          
1971 0.07 0.08        
1972 0.09 0.10        
1973 0.11 0.12 0.10      
1974 0.13 0.14 0.12      
1975 0.13 0.15 0.12 0.12    
1976 0.13 0.13 0.11 0.11    
1977 0.11 0.12 0.10 0.10 0.09  
1978 0.11 0.11 0.09 0.09 0.09  
1979 0.11 0.12 0.09 0.09 0.09 0.09
1980 0.11 0.12 0.09 0.09 0.09 0.08
1981 0.11 0.11 0.09 0.08 0.09 0.08
1982 0.12 0.13 0.10 0.10 0.10 0.09
1983 0.15 0.16 0.12 0.12 0.12 0.11
1984 0.17 0.19 0.14 0.14 0.13 0.12
1985 0.20 0.21 0.16 0.15 0.15 0.13
1986 0.22 0.24 0.17 0.17 0.16 0.14
1987 0.25 0.25 0.19 0.18 0.17 0.15
1988 0.28 0.30 0.22 0.21 0.20 0.18
1989 0.34 0.36 0.27 0.26 0.24 0.22
1990 0.42 0.44 0.35 0.32 0.30 0.28
1991 0.48 0.51 0.39 0.36 0.35 0.32
1992 0.50 0.53 0.40 0.38 0.35 0.33
1993 0.52 0.54 0.41 0.38 0.36 0.33
1994 0.66 0.56 0.42 0.38 0.36 0.33
1995 0.60 0.58 0.42 0.39 0.35 0.32
1996 0.61 0.75 0.42 0.39 0.36 0.33
1997 0.63 0.68 0.46 0.41 0.38 0.33
1998 0.69 0.74 0.62 0.44 0.41 0.37
1999 0.93 0.79 0.59 0.50 0.44 0.41
2000 0.89 0.89 0.66 0.70 0.50 0.45
2001 0.99 1.23 0.72 0.70 0.56 0.50
2002 1.05 1.17 0.79 0.74 0.81 0.54
2003 1.07 1.21 1.08 0.77 0.72 0.56
2004 1.11 1.19 0.91 0.76 0.72 0.81
2005 0.92 1.18 0.90 1.02 0.70 0.65
2006   1.20 0.87 0.82 0.69 0.61
SOURCE: Authors' calculations based on SSA's MBR, 100 percent data.
NOTE: Percentages are scaled to each cohort's age-50 population.
Table equivalent for Chart 9. Cumulative percentage of men entitled to DI benefits by age, biennial birth cohorts 1944–1954
Age Biennial birth cohort
1944 1946 1948 1950 1952 1954
25 0.09 0.13 0.15 0.18 0.13 0.12
26 0.19 0.28 0.32 0.33 0.26 0.24
27 0.29 0.45 0.48 0.47 0.39 0.36
28 0.43 0.65 0.63 0.59 0.50 0.48
29 0.59 0.87 0.77 0.73 0.62 0.63
30 0.78 1.06 0.90 0.85 0.76 0.79
31 0.96 1.23 1.03 0.97 0.92 0.97
32 1.14 1.39 1.15 1.11 1.09 1.16
33 1.31 1.56 1.27 1.27 1.29 1.37
34 1.46 1.71 1.41 1.45 1.50 1.61
35 1.61 1.87 1.57 1.65 1.73 1.89
36 1.76 2.05 1.76 1.87 1.98 2.25
37 1.91 2.26 1.97 2.11 2.28 2.64
38 2.08 2.50 2.19 2.39 2.66 3.04
39 2.27 2.78 2.44 2.71 3.08 3.42
40 2.50 3.08 2.71 3.11 3.50 3.78
41 2.75 3.40 3.04 3.55 3.91 4.13
42 3.03 3.76 3.46 4.00 4.31 4.47
43 3.33 4.19 3.92 4.43 4.69 4.81
44 3.67 4.72 4.38 4.85 5.06 5.17
45 4.08 5.31 4.84 5.27 5.45 5.58
46 4.57 5.91 5.29 5.67 5.86 6.03
47 5.12 6.51 5.72 6.09 6.31 6.54
48 5.68 7.10 6.16 6.55 6.82 7.10
49 6.24 7.71 6.63 7.05 7.41 7.67
50 6.96 8.50 7.27 7.78 8.25 8.51
51 7.59 9.20 7.88 8.52 9.00 9.17
52 8.23 9.97 8.55 9.30 9.75 9.81
53 8.89 10.79 9.32 10.12 10.48 10.40
54 9.62 11.74 10.16 10.93 11.22  
55 10.63 13.11 11.36 12.06 12.19  
56 11.60 14.41 12.36 12.96    
57 12.71 15.78 13.35 13.83    
58 13.90 17.11 14.32      
59 15.13 18.46 15.26      
60 16.41 19.87        
61 17.48 21.04        
SOURCE: Authors' calculations based on SSA's MBR, 100 percent data.
NOTE: Cumulative percentages are scaled against the cohort's age-50 population.
Table equivalent for Chart 10. Cumulative percentage of women entitled to DI benefits by age, biennial birth cohorts 1944–1954
Age Biennial birth cohort
1944 1946 1948 1950 1952 1954
25 0.03 0.04 0.06 0.06 0.05 0.05
26 0.06 0.09 0.12 0.12 0.11 0.10
27 0.09 0.16 0.19 0.18 0.16 0.15
28 0.14 0.25 0.25 0.24 0.22 0.21
29 0.20 0.33 0.31 0.29 0.27 0.28
30 0.27 0.40 0.37 0.35 0.33 0.37
31 0.34 0.48 0.43 0.40 0.41 0.45
32 0.42 0.55 0.48 0.46 0.50 0.55
33 0.48 0.63 0.54 0.54 0.60 0.65
34 0.54 0.70 0.60 0.63 0.71 0.77
35 0.62 0.77 0.69 0.73 0.83 0.92
36 0.69 0.86 0.79 0.85 0.97 1.13
37 0.75 0.97 0.90 0.97 1.14 1.37
38 0.84 1.11 1.03 1.13 1.38 1.63
39 0.94 1.26 1.17 1.32 1.65 1.91
40 1.06 1.43 1.34 1.57 1.94 2.19
41 1.21 1.61 1.55 1.85 2.25 2.49
42 1.37 1.85 1.83 2.16 2.58 2.80
43 1.57 2.13 2.14 2.49 2.91 3.13
44 1.79 2.49 2.49 2.84 3.27 3.49
45 2.06 2.91 2.85 3.21 3.63 3.90
46 2.41 3.37 3.24 3.59 4.04 4.34
47 2.82 3.86 3.64 3.99 4.48 4.84
48 3.25 4.38 4.04 4.42 4.97 5.37
49 3.72 4.92 4.49 4.91 5.51 5.92
50 4.33 5.64 5.08 5.57 6.29 6.70
51 4.89 6.31 5.65 6.23 6.99 7.33
52 5.48 7.03 6.29 6.94 7.68 7.91
53 6.08 7.77 6.97 7.66 8.34 8.40
54 6.72 8.61 7.70 8.37 8.99  
55 7.56 9.70 8.66 9.28 9.73  
56 8.38 10.74 9.49 10.02    
57 9.25 11.80 10.30 10.67    
58 10.15 12.86 11.07      
59 11.07 13.88 11.75      
60 11.99 14.89        
61 12.76 15.68        
SOURCE: Authors' calculations based on SSA's MBR, 100 percent data.
NOTE: Cumulative percentages are scaled against the cohort's age-50 population.
Table equivalent for Chart 11. Cumulative percentage of workers entitled to DI benefits by age and sex for the 1944 and 1954 cohorts
Age Birth cohort
1944 women 1954 women 1944 men 1954 men
25 0.03 0.05 0.09 0.12
26 0.06 0.10 0.19 0.24
27 0.09 0.15 0.29 0.36
28 0.14 0.21 0.43 0.48
29 0.20 0.28 0.59 0.63
30 0.27 0.37 0.78 0.79
31 0.34 0.45 0.96 0.97
32 0.42 0.55 1.14 1.16
33 0.48 0.65 1.31 1.37
34 0.54 0.77 1.46 1.61
35 0.62 0.92 1.61 1.89
36 0.69 1.13 1.76 2.25
37 0.75 1.37 1.91 2.64
38 0.84 1.63 2.08 3.04
39 0.94 1.91 2.27 3.42
40 1.06 2.19 2.50 3.78
41 1.21 2.49 2.75 4.13
42 1.37 2.80 3.03 4.47
43 1.57 3.13 3.33 4.81
44 1.79 3.49 3.67 5.17
45 2.06 3.90 4.08 5.58
46 2.41 4.34 4.57 6.03
47 2.82 4.84 5.12 6.54
48 3.25 5.37 5.68 7.10
49 3.72 5.92 6.24 7.67
50 4.33 6.70 6.96 8.51
51 4.89 7.33 7.59 9.17
52 5.48 7.91 8.23 9.81
53 6.08 8.40 8.89 10.40
54 6.72   9.62  
55 7.56   10.63  
56 8.38   11.60  
57 9.25   12.71  
58 10.15   13.90  
59 11.07   15.13  
60 11.99   16.41  
61 12.76   17.48  
SOURCE: Authors' calculations based on SSA's MBR, 100 percent data.
NOTE: Cumulative percentages are scaled against the cohort's age-50 population.