| Value | Category | Cases | |
|---|---|---|---|
| 1917 | 1 | 
                                    
                                    0%
                                 | |
| 1919 | 1 | 
                                    
                                    0%
                                 | |
| 1921 | 1 | 
                                    
                                    0%
                                 | |
| 1922 | 2 | 
                                    
                                    0%
                                 | |
| 1923 | 3 | 
                                    
                                    0.1%
                                 | |
| 1924 | 1 | 
                                    
                                    0%
                                 | |
| 1925 | 1 | 
                                    
                                    0%
                                 | |
| 1929 | 1 | 
                                    
                                    0%
                                 | |
| 1930 | 2 | 
                                    
                                    0%
                                 | |
| 1931 | 1 | 
                                    
                                    0%
                                 | |
| 1932 | 1 | 
                                    
                                    0%
                                 | |
| 1933 | 1 | 
                                    
                                    0%
                                 | |
| 1934 | 1 | 
                                    
                                    0%
                                 | |
| 1936 | 3 | 
                                    
                                    0.1%
                                 | |
| 1938 | 2 | 
                                    
                                    0%
                                 | |
| 1939 | 1 | 
                                    
                                    0%
                                 | |
| 1940 | 4 | 
                                    
                                    0.1%
                                 | |
| 1941 | 3 | 
                                    
                                    0.1%
                                 | |
| 1942 | 2 | 
                                    
                                    0%
                                 | |
| 1943 | 1 | 
                                    
                                    0%
                                 | |
| 1944 | 3 | 
                                    
                                    0.1%
                                 | |
| 1945 | 3 | 
                                    
                                    0.1%
                                 | |
| 1946 | 6 | 
                                    
                                    0.1%
                                 | |
| 1947 | 6 | 
                                    
                                    0.1%
                                 | |
| 1948 | 6 | 
                                    
                                    0.1%
                                 | |
| 1949 | 6 | 
                                    
                                    0.1%
                                 | |
| 1950 | 6 | 
                                    
                                    0.1%
                                 | |
| 1951 | 4 | 
                                    
                                    0.1%
                                 | |
| 1952 | 3 | 
                                    
                                    0.1%
                                 | |
| 1953 | 6 | 
                                    
                                    0.1%
                                 | |
| 1954 | 9 | 
                                    
                                    0.2%
                                 | |
| 1955 | 11 | 
                                    
                                    0.3%
                                 | |
| 1956 | 8 | 
                                    
                                    0.2%
                                 | |
| 1957 | 7 | 
                                    
                                    0.2%
                                 | |
| 1958 | 13 | 
                                    
                                    0.3%
                                 | |
| 1959 | 3 | 
                                    
                                    0.1%
                                 | |
| 1960 | 14 | 
                                    
                                    0.3%
                                 | |
| 1961 | 4 | 
                                    
                                    0.1%
                                 | |
| 1962 | 8 | 
                                    
                                    0.2%
                                 | |
| 1963 | 6 | 
                                    
                                    0.1%
                                 | |
| 1964 | 21 | 
                                    
                                    0.5%
                                 | |
| 1965 | 3 | 
                                    
                                    0.1%
                                 | |
| 1966 | 16 | 
                                    
                                    0.4%
                                 | |
| 1967 | 13 | 
                                    
                                    0.3%
                                 | |
| 1968 | 12 | 
                                    
                                    0.3%
                                 | |
| 1969 | 12 | 
                                    
                                    0.3%
                                 | |
| 1970 | 11 | 
                                    
                                    0.3%
                                 | |
| 1971 | 14 | 
                                    
                                    0.3%
                                 | |
| 1972 | 12 | 
                                    
                                    0.3%
                                 | |
| 1973 | 12 | 
                                    
                                    0.3%
                                 | |
| 1974 | 12 | 
                                    
                                    0.3%
                                 | |
| 1975 | 12 | 
                                    
                                    0.3%
                                 | |
| 1976 | 14 | 
                                    
                                    0.3%
                                 | |
| 1977 | 9 | 
                                    
                                    0.2%
                                 | |
| 1978 | 30 | 
                                    
                                    0.7%
                                 | |
| 1979 | 23 | 
                                    
                                    0.5%
                                 | |
| 1980 | 27 | 
                                    
                                    0.6%
                                 | |
| 1981 | 32 | 
                                    
                                    0.7%
                                 | |
| 1982 | 49 | 
                                    
                                    1.1%
                                 | |
| 1983 | 47 | 
                                    
                                    1.1%
                                 | |
| 1984 | 61 | 
                                    
                                    1.4%
                                 | |
| 1985 | 60 | 
                                    
                                    1.4%
                                 | |
| 1986 | 87 | 
                                    
                                    2%
                                 | |
| 1987 | 86 | 
                                    
                                    2%
                                 | |
| 1988 | 91 | 
                                    
                                    2.1%
                                 | |
| 1989 | 92 | 
                                    
                                    2.1%
                                 | |
| 1990 | 63 | 
                                    
                                    1.4%
                                 | |
| 1991 | 66 | 
                                    
                                    1.5%
                                 | |
| 1992 | 61 | 
                                    
                                    1.4%
                                 | |
| 1993 | 65 | 
                                    
                                    1.5%
                                 | |
| 1994 | 65 | 
                                    
                                    1.5%
                                 | |
| 1995 | 58 | 
                                    
                                    1.3%
                                 | |
| 1996 | 72 | 
                                    
                                    1.6%
                                 | |
| 1997 | 54 | 
                                    
                                    1.2%
                                 | |
| 1998 | 58 | 
                                    
                                    1.3%
                                 | |
| 1999 | 59 | 
                                    
                                    1.4%
                                 | |
| 2000 | 84 | 
                                    
                                    1.9%
                                 | |
| 2001 | 52 | 
                                    
                                    1.2%
                                 | |
| 2002 | 65 | 
                                    
                                    1.5%
                                 | |
| 2003 | 57 | 
                                    
                                    1.3%
                                 | |
| 2004 | 78 | 
                                    
                                    1.8%
                                 | |
| 2005 | 52 | 
                                    
                                    1.2%
                                 | |
| 2006 | 45 | 
                                    
                                    1%
                                 | |
| 2007 | 64 | 
                                    
                                    1.5%
                                 | |
| 2008 | 50 | 
                                    
                                    1.1%
                                 | |
| 2009 | 66 | 
                                    
                                    1.5%
                                 | |
| 2010 | 419 | 
                                    
                                    9.6%
                                 | |
| 2011 | 576 | 
                                    
                                    13.2%
                                 | |
| 2012 | 270 | 
                                    
                                    6.2%
                                 | |
| 8888 | Don't know | 805 | 
                                    
                                    18.4%
                                 | 
| 9999 | Missing | 43 | 
                                    
                                    1%
                                 | 
| Sysmiss | 15595 |