| Value | Category | Cases | |
|---|---|---|---|
| 1919 | 1 |
0.1%
|
|
| 1921 | 1 |
0.1%
|
|
| 1924 | 3 |
0.4%
|
|
| 1928 | 1 |
0.1%
|
|
| 1930 | 1 |
0.1%
|
|
| 1934 | 2 |
0.3%
|
|
| 1936 | 1 |
0.1%
|
|
| 1938 | 3 |
0.4%
|
|
| 1939 | 2 |
0.3%
|
|
| 1940 | 3 |
0.4%
|
|
| 1941 | 1 |
0.1%
|
|
| 1942 | 4 |
0.5%
|
|
| 1943 | 2 |
0.3%
|
|
| 1944 | 2 |
0.3%
|
|
| 1945 | 2 |
0.3%
|
|
| 1946 | 4 |
0.5%
|
|
| 1947 | 6 |
0.8%
|
|
| 1948 | 3 |
0.4%
|
|
| 1949 | 3 |
0.4%
|
|
| 1950 | 8 |
1.1%
|
|
| 1951 | 5 |
0.7%
|
|
| 1952 | 8 |
1.1%
|
|
| 1953 | 10 |
1.4%
|
|
| 1954 | 12 |
1.6%
|
|
| 1955 | 11 |
1.5%
|
|
| 1956 | 11 |
1.5%
|
|
| 1957 | 13 |
1.8%
|
|
| 1958 | 21 |
2.9%
|
|
| 1959 | 14 |
1.9%
|
|
| 1960 | 15 |
2%
|
|
| 1961 | 13 |
1.8%
|
|
| 1962 | 10 |
1.4%
|
|
| 1963 | 8 |
1.1%
|
|
| 1964 | 7 |
1%
|
|
| 1965 | 11 |
1.5%
|
|
| 1966 | 10 |
1.4%
|
|
| 1967 | 2 |
0.3%
|
|
| 1968 | 7 |
1%
|
|
| 1969 | 2 |
0.3%
|
|
| 1970 | 4 |
0.5%
|
|
| 1971 | 3 |
0.4%
|
|
| 1972 | 2 |
0.3%
|
|
| 1973 | 5 |
0.7%
|
|
| 1974 | 2 |
0.3%
|
|
| 1975 | 4 |
0.5%
|
|
| 1976 | 2 |
0.3%
|
|
| 1977 | 4 |
0.5%
|
|
| 1978 | 6 |
0.8%
|
|
| 1979 | 7 |
1%
|
|
| 1980 | 23 |
3.1%
|
|
| 1981 | 34 |
4.6%
|
|
| 1982 | 30 |
4.1%
|
|
| 1983 | 28 |
3.8%
|
|
| 1984 | 35 |
4.8%
|
|
| 1985 | 43 |
5.9%
|
|
| 1986 | 26 |
3.6%
|
|
| 1987 | 47 |
6.4%
|
|
| 1988 | 22 |
3%
|
|
| 1989 | 18 |
2.5%
|
|
| 1990 | 12 |
1.6%
|
|
| 1991 | 4 |
0.5%
|
|
| 1992 | 9 |
1.2%
|
|
| 1993 | 7 |
1%
|
|
| 1994 | 7 |
1%
|
|
| 1995 | 10 |
1.4%
|
|
| 1996 | 3 |
0.4%
|
|
| 1997 | 9 |
1.2%
|
|
| 1998 | 4 |
0.5%
|
|
| 1999 | 6 |
0.8%
|
|
| 2000 | 6 |
0.8%
|
|
| 2001 | 7 |
1%
|
|
| 2002 | 10 |
1.4%
|
|
| 2003 | 5 |
0.7%
|
|
| 2004 | 4 |
0.5%
|
|
| 2005 | 11 |
1.5%
|
|
| 2006 | 1 |
0.1%
|
|
| 2007 | 13 |
1.8%
|
|
| 2008 | 5 |
0.7%
|
|
| 2009 | 10 |
1.4%
|
|
| 9999 | 9999. Don't know | 1 |
0.1%
|
| Sysmiss | 189 |