Value | Category | Cases | |
---|---|---|---|
-2 | Refusal to answer | 10 |
1.3%
|
-1 | Don't know | 78 |
10.1%
|
0 | 2 |
0.3%
|
|
1904 | 1 |
0.1%
|
|
1920 | 1 |
0.1%
|
|
1930 | 4 |
0.5%
|
|
1934 | 2 |
0.3%
|
|
1937 | 3 |
0.4%
|
|
1940 | 4 |
0.5%
|
|
1942 | 1 |
0.1%
|
|
1945 | 3 |
0.4%
|
|
1947 | 2 |
0.3%
|
|
1948 | 5 |
0.6%
|
|
1949 | 3 |
0.4%
|
|
1950 | 15 |
1.9%
|
|
1951 | 2 |
0.3%
|
|
1952 | 1 |
0.1%
|
|
1953 | 4 |
0.5%
|
|
1954 | 3 |
0.4%
|
|
1955 | 8 |
1%
|
|
1956 | 8 |
1%
|
|
1957 | 2 |
0.3%
|
|
1958 | 4 |
0.5%
|
|
1959 | 3 |
0.4%
|
|
1960 | 16 |
2.1%
|
|
1961 | 4 |
0.5%
|
|
1962 | 12 |
1.5%
|
|
1963 | 1 |
0.1%
|
|
1964 | 6 |
0.8%
|
|
1965 | 14 |
1.8%
|
|
1966 | 9 |
1.2%
|
|
1968 | 2 |
0.3%
|
|
1969 | 4 |
0.5%
|
|
1970 | 20 |
2.6%
|
|
1971 | 5 |
0.6%
|
|
1972 | 2 |
0.3%
|
|
1973 | 1 |
0.1%
|
|
1974 | 4 |
0.5%
|
|
1975 | 8 |
1%
|
|
1976 | 9 |
1.2%
|
|
1977 | 2 |
0.3%
|
|
1978 | 5 |
0.6%
|
|
1979 | 4 |
0.5%
|
|
1980 | 13 |
1.7%
|
|
1981 | 6 |
0.8%
|
|
1982 | 13 |
1.7%
|
|
1983 | 1 |
0.1%
|
|
1984 | 5 |
0.6%
|
|
1985 | 14 |
1.8%
|
|
1986 | 11 |
1.4%
|
|
1987 | 6 |
0.8%
|
|
1988 | 9 |
1.2%
|
|
1989 | 10 |
1.3%
|
|
1990 | 39 |
5%
|
|
1991 | 10 |
1.3%
|
|
1992 | 28 |
3.6%
|
|
1993 | 22 |
2.8%
|
|
1994 | 42 |
5.4%
|
|
1995 | 49 |
6.3%
|
|
1996 | 58 |
7.5%
|
|
1997 | 36 |
4.6%
|
|
1998 | 46 |
5.9%
|
|
1999 | 33 |
4.3%
|
|
2000 | 24 |
3.1%
|
|
2001 | 4 |
0.5%
|
|
Sysmiss | 1857 |