| Value | Category | Cases | |
|---|---|---|---|
| 1925 | 1 |
0%
|
|
| 1935 | 1 |
0%
|
|
| 1936 | 1 |
0%
|
|
| 1938 | 3 |
0.1%
|
|
| 1939 | 4 |
0.1%
|
|
| 1940 | 2 |
0%
|
|
| 1941 | 3 |
0.1%
|
|
| 1942 | 3 |
0.1%
|
|
| 1943 | 2 |
0%
|
|
| 1944 | 2 |
0%
|
|
| 1945 | 3 |
0.1%
|
|
| 1946 | 7 |
0.1%
|
|
| 1947 | 8 |
0.2%
|
|
| 1948 | 5 |
0.1%
|
|
| 1949 | 9 |
0.2%
|
|
| 1950 | 5 |
0.1%
|
|
| 1951 | 6 |
0.1%
|
|
| 1952 | 12 |
0.3%
|
|
| 1953 | 11 |
0.2%
|
|
| 1954 | 19 |
0.4%
|
|
| 1955 | 13 |
0.3%
|
|
| 1956 | 12 |
0.3%
|
|
| 1957 | 17 |
0.4%
|
|
| 1958 | 23 |
0.5%
|
|
| 1959 | 16 |
0.3%
|
|
| 1960 | 23 |
0.5%
|
|
| 1961 | 15 |
0.3%
|
|
| 1962 | 19 |
0.4%
|
|
| 1963 | 23 |
0.5%
|
|
| 1964 | 37 |
0.8%
|
|
| 1965 | 27 |
0.6%
|
|
| 1966 | 20 |
0.4%
|
|
| 1967 | 30 |
0.6%
|
|
| 1968 | 29 |
0.6%
|
|
| 1969 | 36 |
0.8%
|
|
| 1970 | 53 |
1.1%
|
|
| 1971 | 30 |
0.6%
|
|
| 1972 | 36 |
0.8%
|
|
| 1973 | 31 |
0.7%
|
|
| 1974 | 42 |
0.9%
|
|
| 1975 | 36 |
0.8%
|
|
| 1976 | 37 |
0.8%
|
|
| 1977 | 41 |
0.9%
|
|
| 1978 | 50 |
1.1%
|
|
| 1979 | 36 |
0.8%
|
|
| 1980 | 40 |
0.8%
|
|
| 1981 | 49 |
1%
|
|
| 1982 | 55 |
1.2%
|
|
| 1983 | 48 |
1%
|
|
| 1984 | 42 |
0.9%
|
|
| 1985 | 56 |
1.2%
|
|
| 1986 | 67 |
1.4%
|
|
| 1987 | 52 |
1.1%
|
|
| 1988 | 66 |
1.4%
|
|
| 1989 | 53 |
1.1%
|
|
| 1990 | 70 |
1.5%
|
|
| 1991 | 65 |
1.4%
|
|
| 1992 | 61 |
1.3%
|
|
| 1993 | 81 |
1.7%
|
|
| 1994 | 71 |
1.5%
|
|
| 1995 | 64 |
1.4%
|
|
| 1996 | 79 |
1.7%
|
|
| 1997 | 69 |
1.5%
|
|
| 1998 | 105 |
2.2%
|
|
| 1999 | 87 |
1.8%
|
|
| 2000 | 119 |
2.5%
|
|
| 2001 | 113 |
2.4%
|
|
| 2002 | 111 |
2.3%
|
|
| 2003 | 130 |
2.7%
|
|
| 2004 | 118 |
2.5%
|
|
| 2005 | 131 |
2.8%
|
|
| 2006 | 105 |
2.2%
|
|
| 2007 | 137 |
2.9%
|
|
| 2008 | 132 |
2.8%
|
|
| 2009 | 127 |
2.7%
|
|
| 2010 | 144 |
3%
|
|
| 2011 | 137 |
2.9%
|
|
| 2012 | 159 |
3.4%
|
|
| 2013 | 130 |
2.7%
|
|
| 2014 | 146 |
3.1%
|
|
| 2015 | 158 |
3.3%
|
|
| 2016 | 146 |
3.1%
|
|
| 2017 | 132 |
2.8%
|
|
| 2018 | 141 |
3%
|
|
| 9998 | DK | 96 |
2%
|
| 9999 | NO RESPONSE | 1 |
0%
|