Value | Category | Cases | |
---|---|---|---|
-9 | Don't know | 0 |
0%
|
-8 | Refused | 0 |
0%
|
-5 | Not applicable | 0 |
0%
|
-3 | Missing | 0 |
0%
|
1 | Less than 1 year | 0 |
0%
|
1901 | 1 |
0.1%
|
|
1910 | 1 |
0.1%
|
|
1914 | 1 |
0.1%
|
|
1916 | 2 |
0.1%
|
|
1918 | 3 |
0.2%
|
|
1919 | 4 |
0.3%
|
|
1920 | 1 |
0.1%
|
|
1922 | 2 |
0.1%
|
|
1923 | 5 |
0.3%
|
|
1924 | 4 |
0.3%
|
|
1925 | 1 |
0.1%
|
|
1926 | 4 |
0.3%
|
|
1927 | 3 |
0.2%
|
|
1928 | 2 |
0.1%
|
|
1929 | 5 |
0.3%
|
|
1930 | 16 |
1%
|
|
1931 | 6 |
0.4%
|
|
1932 | 3 |
0.2%
|
|
1933 | 5 |
0.3%
|
|
1934 | 3 |
0.2%
|
|
1935 | 6 |
0.4%
|
|
1936 | 7 |
0.4%
|
|
1937 | 6 |
0.4%
|
|
1938 | 1 |
0.1%
|
|
1939 | 9 |
0.6%
|
|
1940 | 5 |
0.3%
|
|
1941 | 7 |
0.4%
|
|
1942 | 9 |
0.6%
|
|
1943 | 6 |
0.4%
|
|
1944 | 4 |
0.3%
|
|
1945 | 3 |
0.2%
|
|
1946 | 6 |
0.4%
|
|
1947 | 8 |
0.5%
|
|
1948 | 8 |
0.5%
|
|
1949 | 12 |
0.8%
|
|
1950 | 12 |
0.8%
|
|
1951 | 9 |
0.6%
|
|
1952 | 13 |
0.8%
|
|
1953 | 17 |
1.1%
|
|
1954 | 14 |
0.9%
|
|
1955 | 7 |
0.4%
|
|
1956 | 19 |
1.2%
|
|
1957 | 15 |
0.9%
|
|
1958 | 10 |
0.6%
|
|
1959 | 13 |
0.8%
|
|
1960 | 20 |
1.3%
|
|
1961 | 10 |
0.6%
|
|
1962 | 14 |
0.9%
|
|
1963 | 17 |
1.1%
|
|
1964 | 15 |
0.9%
|
|
1965 | 18 |
1.1%
|
|
1966 | 12 |
0.8%
|
|
1967 | 16 |
1%
|
|
1968 | 23 |
1.4%
|
|
1969 | 22 |
1.4%
|
|
1970 | 12 |
0.8%
|
|
1971 | 24 |
1.5%
|
|
1972 | 29 |
1.8%
|
|
1973 | 11 |
0.7%
|
|
1974 | 24 |
1.5%
|
|
1975 | 24 |
1.5%
|
|
1976 | 19 |
1.2%
|
|
1977 | 24 |
1.5%
|
|
1978 | 28 |
1.8%
|
|
1979 | 23 |
1.4%
|
|
1980 | 27 |
1.7%
|
|
1981 | 25 |
1.6%
|
|
1982 | 32 |
2%
|
|
1983 | 34 |
2.1%
|
|
1984 | 38 |
2.4%
|
|
1985 | 38 |
2.4%
|
|
1986 | 34 |
2.1%
|
|
1987 | 34 |
2.1%
|
|
1988 | 43 |
2.7%
|
|
1989 | 48 |
3%
|
|
1990 | 60 |
3.8%
|
|
1991 | 58 |
3.6%
|
|
1992 | 64 |
4%
|
|
1993 | 66 |
4.1%
|
|
1994 | 69 |
4.3%
|
|
1995 | 70 |
4.4%
|
|
1996 | 60 |
3.8%
|
|
1997 | 41 |
2.6%
|
|
1998 | 32 |
2%
|
|
1999 | 28 |
1.8%
|
|
2000 | 8 |
0.5%
|
|
3333 | Missing | 0 |
0%
|
5555 | Not applicable | 0 |
0%
|
8888 | Refused | 0 |
0%
|
9999 | Don't know | 1 |
0.1%
|
Sysmiss | 4 |