| Value | Category | Cases | |
|---|---|---|---|
| 1920 | 1 |
0.1%
|
|
| 1921 | 1 |
0.1%
|
|
| 1923 | 1 |
0.1%
|
|
| 1924 | 2 |
0.3%
|
|
| 1926 | 1 |
0.1%
|
|
| 1929 | 1 |
0.1%
|
|
| 1935 | 2 |
0.3%
|
|
| 1940 | 2 |
0.3%
|
|
| 1944 | 1 |
0.1%
|
|
| 1945 | 1 |
0.1%
|
|
| 1947 | 1 |
0.1%
|
|
| 1949 | 1 |
0.1%
|
|
| 1951 | 1 |
0.1%
|
|
| 1956 | 2 |
0.3%
|
|
| 1959 | 1 |
0.1%
|
|
| 1962 | 1 |
0.1%
|
|
| 1963 | 1 |
0.1%
|
|
| 1967 | 1 |
0.1%
|
|
| 1968 | 1 |
0.1%
|
|
| 1970 | 3 |
0.4%
|
|
| 1972 | 1 |
0.1%
|
|
| 1973 | 3 |
0.4%
|
|
| 1974 | 2 |
0.3%
|
|
| 1975 | 5 |
0.7%
|
|
| 1976 | 6 |
0.8%
|
|
| 1977 | 6 |
0.8%
|
|
| 1978 | 7 |
1%
|
|
| 1979 | 10 |
1.4%
|
|
| 1980 | 13 |
1.8%
|
|
| 1981 | 8 |
1.1%
|
|
| 1982 | 11 |
1.5%
|
|
| 1983 | 12 |
1.6%
|
|
| 1984 | 18 |
2.4%
|
|
| 1985 | 25 |
3.4%
|
|
| 1986 | 24 |
3.3%
|
|
| 1987 | 21 |
2.9%
|
|
| 1988 | 26 |
3.5%
|
|
| 1989 | 33 |
4.5%
|
|
| 1990 | 33 |
4.5%
|
|
| 1991 | 40 |
5.4%
|
|
| 1992 | 42 |
5.7%
|
|
| 1993 | 36 |
4.9%
|
|
| 1994 | 40 |
5.4%
|
|
| 1995 | 37 |
5%
|
|
| 1996 | 27 |
3.7%
|
|
| 1997 | 33 |
4.5%
|
|
| 1998 | 39 |
5.3%
|
|
| 1999 | 44 |
6%
|
|
| 2000 | 39 |
5.3%
|
|
| 2001 | 35 |
4.8%
|
|
| 2002 | 32 |
4.3%
|
|
| 2003 | 2 |
0.3%
|
|
| 2147483622 | Not applicable | 0 |
0%
|
| 2147483623 | Refusal | 0 |
0%
|
| 2147483624 | Don't know | 0 |
0%
|
| 2147483625 | No answer | 0 |
0%
|
| 10001 | .D | 41623 |