| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| 1931 | 2 |
0.1%
|
|
| 1933 | 1 |
0%
|
|
| 1934 | 2 |
0.1%
|
|
| 1936 | 2 |
0.1%
|
|
| 1937 | 1 |
0%
|
|
| 1938 | 1 |
0%
|
|
| 1939 | 5 |
0.2%
|
|
| 1940 | 5 |
0.2%
|
|
| 1941 | 1 |
0%
|
|
| 1942 | 2 |
0.1%
|
|
| 1943 | 2 |
0.1%
|
|
| 1944 | 4 |
0.1%
|
|
| 1945 | 5 |
0.2%
|
|
| 1946 | 9 |
0.3%
|
|
| 1947 | 5 |
0.2%
|
|
| 1948 | 6 |
0.2%
|
|
| 1949 | 5 |
0.2%
|
|
| 1950 | 11 |
0.3%
|
|
| 1951 | 8 |
0.3%
|
|
| 1952 | 11 |
0.3%
|
|
| 1953 | 9 |
0.3%
|
|
| 1954 | 20 |
0.6%
|
|
| 1955 | 11 |
0.3%
|
|
| 1956 | 18 |
0.6%
|
|
| 1957 | 20 |
0.6%
|
|
| 1958 | 18 |
0.6%
|
|
| 1959 | 12 |
0.4%
|
|
| 1960 | 14 |
0.4%
|
|
| 1961 | 17 |
0.5%
|
|
| 1962 | 10 |
0.3%
|
|
| 1963 | 10 |
0.3%
|
|
| 1964 | 9 |
0.3%
|
|
| 1965 | 11 |
0.3%
|
|
| 1966 | 18 |
0.6%
|
|
| 1967 | 12 |
0.4%
|
|
| 1968 | 44 |
1.4%
|
|
| 1969 | 35 |
1.1%
|
|
| 1970 | 38 |
1.2%
|
|
| 1971 | 50 |
1.6%
|
|
| 1972 | 70 |
2.2%
|
|
| 1973 | 67 |
2.1%
|
|
| 1974 | 80 |
2.5%
|
|
| 1975 | 84 |
2.6%
|
|
| 1976 | 111 |
3.5%
|
|
| 1977 | 127 |
4%
|
|
| 1978 | 146 |
4.6%
|
|
| 1979 | 153 |
4.8%
|
|
| 1980 | 143 |
4.5%
|
|
| 1981 | 180 |
5.7%
|
|
| 1982 | 250 |
7.9%
|
|
| 1983 | 233 |
7.3%
|
|
| 1984 | 285 |
9%
|
|
| 1985 | 212 |
6.7%
|
|
| 1986 | 184 |
5.8%
|
|
| 1987 | 154 |
4.8%
|
|
| 1988 | 116 |
3.7%
|
|
| 1989 | 65 |
2%
|
|
| 1990 | 39 |
1.2%
|
|
| 1991 | 11 |
0.3%
|
|
| 1992 | 1 |
0%
|
|
| 1994 | 1 |
0%
|
|
| 1995 | 1 |
0%
|
|
| Sysmiss | 1 |