| Value | Category | Cases | |
|---|---|---|---|
| 1923 | 1 |
0%
|
|
| 1924 | 2 |
0%
|
|
| 1926 | 1 |
0%
|
|
| 1927 | 2 |
0%
|
|
| 1928 | 1 |
0%
|
|
| 1930 | 5 |
0.1%
|
|
| 1931 | 2 |
0%
|
|
| 1932 | 5 |
0.1%
|
|
| 1933 | 5 |
0.1%
|
|
| 1934 | 8 |
0.1%
|
|
| 1935 | 6 |
0.1%
|
|
| 1936 | 6 |
0.1%
|
|
| 1937 | 9 |
0.1%
|
|
| 1938 | 8 |
0.1%
|
|
| 1939 | 10 |
0.2%
|
|
| 1940 | 11 |
0.2%
|
|
| 1941 | 14 |
0.2%
|
|
| 1942 | 8 |
0.1%
|
|
| 1943 | 9 |
0.1%
|
|
| 1944 | 20 |
0.3%
|
|
| 1945 | 19 |
0.3%
|
|
| 1946 | 25 |
0.4%
|
|
| 1947 | 23 |
0.4%
|
|
| 1948 | 15 |
0.2%
|
|
| 1949 | 28 |
0.4%
|
|
| 1950 | 30 |
0.5%
|
|
| 1951 | 24 |
0.4%
|
|
| 1952 | 35 |
0.6%
|
|
| 1953 | 39 |
0.6%
|
|
| 1954 | 41 |
0.6%
|
|
| 1955 | 44 |
0.7%
|
|
| 1956 | 40 |
0.6%
|
|
| 1957 | 37 |
0.6%
|
|
| 1958 | 50 |
0.8%
|
|
| 1959 | 38 |
0.6%
|
|
| 1960 | 67 |
1.1%
|
|
| 1961 | 49 |
0.8%
|
|
| 1962 | 52 |
0.8%
|
|
| 1963 | 49 |
0.8%
|
|
| 1964 | 57 |
0.9%
|
|
| 1965 | 61 |
1%
|
|
| 1966 | 58 |
0.9%
|
|
| 1967 | 73 |
1.1%
|
|
| 1968 | 59 |
0.9%
|
|
| 1969 | 46 |
0.7%
|
|
| 1970 | 74 |
1.2%
|
|
| 1971 | 57 |
0.9%
|
|
| 1972 | 56 |
0.9%
|
|
| 1973 | 53 |
0.8%
|
|
| 1974 | 52 |
0.8%
|
|
| 1975 | 56 |
0.9%
|
|
| 1976 | 53 |
0.8%
|
|
| 1977 | 56 |
0.9%
|
|
| 1978 | 74 |
1.2%
|
|
| 1979 | 101 |
1.6%
|
|
| 1980 | 116 |
1.8%
|
|
| 1981 | 101 |
1.6%
|
|
| 1982 | 97 |
1.5%
|
|
| 1983 | 123 |
1.9%
|
|
| 1984 | 96 |
1.5%
|
|
| 1985 | 99 |
1.6%
|
|
| 1986 | 116 |
1.8%
|
|
| 1987 | 112 |
1.8%
|
|
| 1988 | 110 |
1.7%
|
|
| 1989 | 81 |
1.3%
|
|
| 1990 | 110 |
1.7%
|
|
| 1991 | 81 |
1.3%
|
|
| 1992 | 103 |
1.6%
|
|
| 1993 | 82 |
1.3%
|
|
| 1994 | 84 |
1.3%
|
|
| 1995 | 95 |
1.5%
|
|
| 1996 | 76 |
1.2%
|
|
| 1997 | 68 |
1.1%
|
|
| 1998 | 102 |
1.6%
|
|
| 1999 | 79 |
1.2%
|
|
| 2000 | 89 |
1.4%
|
|
| 2001 | 65 |
1%
|
|
| 2002 | 123 |
1.9%
|
|
| 2003 | 108 |
1.7%
|
|
| 2004 | 122 |
1.9%
|
|
| 2005 | 127 |
2%
|
|
| 2006 | 145 |
2.3%
|
|
| 2007 | 167 |
2.6%
|
|
| 2008 | 140 |
2.2%
|
|
| 2009 | 153 |
2.4%
|
|
| 2010 | 130 |
2%
|
|
| 2011 | 142 |
2.2%
|
|
| 2012 | 135 |
2.1%
|
|
| 2013 | 141 |
2.2%
|
|
| 2014 | 132 |
2.1%
|
|
| 2015 | 135 |
2.1%
|
|
| 2016 | 133 |
2.1%
|
|
| 2017 | 128 |
2%
|
|
| 2018 | 134 |
2.1%
|
|
| 2019 | 108 |
1.7%
|
|
| 9999 | Don't know | 39 |
0.6%
|