Value | Category | Cases | |
---|---|---|---|
-2 | No answer | 3 |
0.3%
|
1935 | 1 |
0.1%
|
|
1940 | 1 |
0.1%
|
|
1941 | 3 |
0.3%
|
|
1942 | 1 |
0.1%
|
|
1944 | 1 |
0.1%
|
|
1945 | 1 |
0.1%
|
|
1946 | 4 |
0.4%
|
|
1947 | 2 |
0.2%
|
|
1948 | 1 |
0.1%
|
|
1949 | 4 |
0.4%
|
|
1950 | 2 |
0.2%
|
|
1951 | 4 |
0.4%
|
|
1952 | 6 |
0.6%
|
|
1953 | 9 |
0.9%
|
|
1954 | 4 |
0.4%
|
|
1955 | 6 |
0.6%
|
|
1956 | 12 |
1.2%
|
|
1957 | 6 |
0.6%
|
|
1958 | 9 |
0.9%
|
|
1959 | 11 |
1.1%
|
|
1960 | 6 |
0.6%
|
|
1961 | 3 |
0.3%
|
|
1962 | 10 |
1%
|
|
1963 | 4 |
0.4%
|
|
1964 | 11 |
1.1%
|
|
1965 | 11 |
1.1%
|
|
1966 | 15 |
1.4%
|
|
1967 | 10 |
1%
|
|
1968 | 14 |
1.3%
|
|
1969 | 8 |
0.8%
|
|
1970 | 8 |
0.8%
|
|
1971 | 9 |
0.9%
|
|
1972 | 13 |
1.3%
|
|
1973 | 16 |
1.5%
|
|
1974 | 19 |
1.8%
|
|
1975 | 16 |
1.5%
|
|
1976 | 19 |
1.8%
|
|
1977 | 19 |
1.8%
|
|
1978 | 26 |
2.5%
|
|
1979 | 20 |
1.9%
|
|
1980 | 23 |
2.2%
|
|
1981 | 12 |
1.2%
|
|
1982 | 26 |
2.5%
|
|
1983 | 23 |
2.2%
|
|
1984 | 17 |
1.6%
|
|
1985 | 27 |
2.6%
|
|
1986 | 40 |
3.8%
|
|
1987 | 24 |
2.3%
|
|
1988 | 40 |
3.8%
|
|
1989 | 37 |
3.6%
|
|
1990 | 28 |
2.7%
|
|
1991 | 34 |
3.3%
|
|
1992 | 39 |
3.8%
|
|
1993 | 38 |
3.7%
|
|
1994 | 32 |
3.1%
|
|
1995 | 33 |
3.2%
|
|
1996 | 23 |
2.2%
|
|
1997 | 27 |
2.6%
|
|
1998 | 23 |
2.2%
|
|
1999 | 29 |
2.8%
|
|
2000 | 31 |
3%
|
|
2001 | 33 |
3.2%
|
|
2002 | 20 |
1.9%
|
|
2003 | 26 |
2.5%
|
|
2004 | 6 |
0.6%
|