Estimated number 1
of insured workers, by insured status, on December 31,
1940-2008
[In millions]
| Year |
Workers fully insured for
retirement and/or survivor benefits |
Workers
insured in
event
of disability |
| Total |
Permanently
insured |
Not permanently
insured |
| 1940 |
24.2 |
1.1 |
23.1 |
. . . |
| 1941 |
25.8 |
1.4 |
24.4 |
. . . |
| 1942 |
28.1 |
1.8 |
26.3 |
. . . |
| 1943 |
29.9 |
2.3 |
27.6 |
. . . |
| 1944 |
31.9 |
2.8 |
29.1 |
. . . |
| 1945 |
33.4 |
3.4 |
30.0 |
. . . |
| 1946 |
35.4 |
8.6 |
26.8 |
. . . |
| 1947 |
37.3 |
11.6 |
25.7 |
. . . |
| 1948 |
38.9 |
13.2 |
25.7 |
. . . |
| 1949 |
40.1 |
14.9 |
25.2 |
. . . |
| 1950 |
59.8 |
21.0 |
38.8 |
. . . |
| 1951 |
62.8 |
22.9 |
39.9 |
. . . |
| 1952 |
68.2 |
25.6 |
42.7 |
. . . |
| 1953 |
71.0 |
27.7 |
43.4 |
. . . |
| 1954 |
70.2 |
29.9 |
40.4 |
31.9 |
| 1955 |
70.5 |
32.5 |
38.0 |
35.4 |
| 1956 |
74.0 |
36.1 |
38.0 |
37.2 |
| 1957 |
76.1 |
38.3 |
37.9 |
38.4 |
| 1958 |
76.5 |
40.3 |
36.2 |
43.4 |
| 1959 |
76.7 |
42.2 |
34.6 |
46.4 |
| 1960 |
84.4 |
47.6 |
36.8 |
48.5 |
| 1961 |
88.5 |
53.3 |
35.3 |
50.5 |
| 1962 |
89.8 |
54.9 |
34.8 |
51.5 |
| 1963 |
91.3 |
56.6 |
34.7 |
52.3 |
| 1964 |
92.8 |
58.3 |
34.5 |
53.3 |
| 1965 |
94.8 |
60.2 |
34.6 |
55.0 |
| 1966 |
97.2 |
61.9 |
35.3 |
55.7 |
| 1967 |
99.9 |
63.3 |
36.6 |
56.9 |
| 1968 |
102.6 |
64.5 |
38.1 |
70.1 |
| 1969 |
106.1 |
66.6 |
39.5 |
72.4 |
| 1970 |
108.8 |
67.8 |
41.0 |
74.5 |
| 1971 |
111.3 |
68.9 |
42.4 |
76.1 |
| 1972 |
113.9 |
70.3 |
43.7 |
77.8 |
| 1973 |
117.1 |
71.6 |
45.5 |
80.4 |
| 1974 |
120.6 |
73.2 |
47.5 |
83.3 |
| 1975 |
124.1 |
75.3 |
48.8 |
85.3 |
| 1976 |
127.0 |
77.1 |
49.9 |
87.0 |
| 1977 |
130.1 |
79.2 |
50.9 |
89.3 |
| 1978 |
134.3 |
81.4 |
52.9 |
93.7 |
| 1979 |
138.3 |
83.9 |
54.4 |
98.0 |
| 1980 |
141.3 |
86.2 |
55.1 |
100.3 |
| 1981 |
143.7 |
88.8 |
54.9 |
102.6 |
| 1982 |
145.6 |
91.6 |
54.0 |
104.5 |
| 1983 |
147.2 |
94.7 |
52.5 |
105.4 |
| 1984 |
149.0 |
97.6 |
51.5 |
107.1 |
| 1985 |
151.6 |
100.7 |
50.9 |
109.6 |
| 1986 |
154.1 |
104.1 |
50.0 |
111.6 |
| 1987 |
156.4 |
108.0 |
48.4 |
113.5 |
| 1988 |
159.0 |
111.3 |
47.8 |
115.7 |
| 1989 |
162.2 |
114.3 |
47.9 |
118.1 |
| 1990 |
164.5 |
116.8 |
47.7 |
120.1 |
| 1991 |
166.4 |
119.1 |
47.3 |
121.5 |
| 1992 |
168.0 |
121.5 |
46.5 |
122.9 |
| 1993 |
169.6 |
123.9 |
45.6 |
124.4 |
| 1994 |
171.3 |
126.2 |
45.0 |
126.2 |
| 1995 |
173.6 |
128.7 |
44.9 |
128.2 |
| 1996 |
175.7 |
131.2 |
44.5 |
130.3 |
| 1997 |
178.0 |
133.9 |
44.1 |
132.4 |
| 1998 |
180.5 |
136.4 |
44.0 |
134.6 |
| 1999 |
183.3 |
139.0 |
44.3 |
137.1 |
| 2000 |
185.7 |
140.9 |
44.9 |
139.5 |
| 2001 |
188.1 |
142.9 |
45.2 |
141.7 |
| 2002 |
190.3 |
144.9 |
45.3 |
143.5 |
| 2003 |
192.0 |
147.0 |
45.0 |
144.9 |
| 2004 |
193.7 |
149.0 |
44.8 |
146.2 |
| 2005 |
195.8 |
151.1 |
44.7 |
147.7 |
| 2006 |
198.4 |
153.3 |
45.1 |
150.1 |
| 2007 |
200.9 |
155.4 |
45.6 |
152.3 |
| 2008 |
203.4 |
157.4 |
46.0 |
154.5 |
|
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