| Value | Category | Cases | |
|---|---|---|---|
| 1920 | 1 | 
                                    
                                    0%
                                 | |
| 1921 | 3 | 
                                    
                                    0%
                                 | |
| 1923 | 1 | 
                                    
                                    0%
                                 | |
| 1924 | 4 | 
                                    
                                    0%
                                 | |
| 1926 | 4 | 
                                    
                                    0%
                                 | |
| 1927 | 7 | 
                                    
                                    0%
                                 | |
| 1928 | 7 | 
                                    
                                    0%
                                 | |
| 1929 | 2 | 
                                    
                                    0%
                                 | |
| 1930 | 11 | 
                                    
                                    0%
                                 | |
| 1931 | 9 | 
                                    
                                    0%
                                 | |
| 1932 | 21 | 
                                    
                                    0%
                                 | |
| 1933 | 22 | 
                                    
                                    0%
                                 | |
| 1934 | 28 | 
                                    
                                    0.1%
                                 | |
| 1935 | 32 | 
                                    
                                    0.1%
                                 | |
| 1936 | 42 | 
                                    
                                    0.1%
                                 | |
| 1937 | 41 | 
                                    
                                    0.1%
                                 | |
| 1938 | 22 | 
                                    
                                    0%
                                 | |
| 1939 | 37 | 
                                    
                                    0.1%
                                 | |
| 1940 | 52 | 
                                    
                                    0.1%
                                 | |
| 1941 | 30 | 
                                    
                                    0.1%
                                 | |
| 1942 | 56 | 
                                    
                                    0.1%
                                 | |
| 1943 | 40 | 
                                    
                                    0.1%
                                 | |
| 1944 | 71 | 
                                    
                                    0.2%
                                 | |
| 1945 | 74 | 
                                    
                                    0.2%
                                 | |
| 1946 | 67 | 
                                    
                                    0.1%
                                 | |
| 1947 | 94 | 
                                    
                                    0.2%
                                 | |
| 1948 | 111 | 
                                    
                                    0.2%
                                 | |
| 1949 | 93 | 
                                    
                                    0.2%
                                 | |
| 1950 | 109 | 
                                    
                                    0.2%
                                 | |
| 1951 | 123 | 
                                    
                                    0.3%
                                 | |
| 1952 | 123 | 
                                    
                                    0.3%
                                 | |
| 1953 | 131 | 
                                    
                                    0.3%
                                 | |
| 1954 | 179 | 
                                    
                                    0.4%
                                 | |
| 1955 | 137 | 
                                    
                                    0.3%
                                 | |
| 1956 | 153 | 
                                    
                                    0.3%
                                 | |
| 1957 | 192 | 
                                    
                                    0.4%
                                 | |
| 1958 | 199 | 
                                    
                                    0.4%
                                 | |
| 1959 | 197 | 
                                    
                                    0.4%
                                 | |
| 1960 | 268 | 
                                    
                                    0.6%
                                 | |
| 1961 | 226 | 
                                    
                                    0.5%
                                 | |
| 1962 | 272 | 
                                    
                                    0.6%
                                 | |
| 1963 | 249 | 
                                    
                                    0.5%
                                 | |
| 1964 | 309 | 
                                    
                                    0.7%
                                 | |
| 1965 | 333 | 
                                    
                                    0.7%
                                 | |
| 1966 | 324 | 
                                    
                                    0.7%
                                 | |
| 1967 | 337 | 
                                    
                                    0.7%
                                 | |
| 1968 | 293 | 
                                    
                                    0.6%
                                 | |
| 1969 | 385 | 
                                    
                                    0.8%
                                 | |
| 1970 | 339 | 
                                    
                                    0.7%
                                 | |
| 1971 | 369 | 
                                    
                                    0.8%
                                 | |
| 1972 | 388 | 
                                    
                                    0.8%
                                 | |
| 1973 | 433 | 
                                    
                                    0.9%
                                 | |
| 1974 | 409 | 
                                    
                                    0.9%
                                 | |
| 1975 | 471 | 
                                    
                                    1%
                                 | |
| 1976 | 421 | 
                                    
                                    0.9%
                                 | |
| 1977 | 465 | 
                                    
                                    1%
                                 | |
| 1978 | 409 | 
                                    
                                    0.9%
                                 | |
| 1979 | 518 | 
                                    
                                    1.1%
                                 | |
| 1980 | 494 | 
                                    
                                    1.1%
                                 | |
| 1981 | 496 | 
                                    
                                    1.1%
                                 | |
| 1982 | 523 | 
                                    
                                    1.1%
                                 | |
| 1983 | 527 | 
                                    
                                    1.1%
                                 | |
| 1984 | 534 | 
                                    
                                    1.1%
                                 | |
| 1985 | 565 | 
                                    
                                    1.2%
                                 | |
| 1986 | 595 | 
                                    
                                    1.3%
                                 | |
| 1987 | 576 | 
                                    
                                    1.2%
                                 | |
| 1988 | 588 | 
                                    
                                    1.3%
                                 | |
| 1989 | 750 | 
                                    
                                    1.6%
                                 | |
| 1990 | 739 | 
                                    
                                    1.6%
                                 | |
| 1991 | 800 | 
                                    
                                    1.7%
                                 | |
| 1992 | 796 | 
                                    
                                    1.7%
                                 | |
| 1993 | 899 | 
                                    
                                    1.9%
                                 | |
| 1994 | 840 | 
                                    
                                    1.8%
                                 | |
| 1995 | 932 | 
                                    
                                    2%
                                 | |
| 1996 | 934 | 
                                    
                                    2%
                                 | |
| 1997 | 857 | 
                                    
                                    1.8%
                                 | |
| 1998 | 923 | 
                                    
                                    2%
                                 | |
| 1999 | 914 | 
                                    
                                    2%
                                 | |
| 2000 | 1000 | 
                                    
                                    2.1%
                                 | |
| 2001 | 919 | 
                                    
                                    2%
                                 | |
| 2002 | 959 | 
                                    
                                    2.1%
                                 | |
| 2003 | 1041 | 
                                    
                                    2.2%
                                 | |
| 2004 | 986 | 
                                    
                                    2.1%
                                 | |
| 2005 | 1116 | 
                                    
                                    2.4%
                                 | |
| 2006 | 1020 | 
                                    
                                    2.2%
                                 | |
| 2007 | 1153 | 
                                    
                                    2.5%
                                 | |
| 2008 | 1037 | 
                                    
                                    2.2%
                                 | |
| 2009 | 1127 | 
                                    
                                    2.4%
                                 | |
| 2010 | 1200 | 
                                    
                                    2.6%
                                 | |
| 2011 | 1177 | 
                                    
                                    2.5%
                                 | |
| 2012 | 1159 | 
                                    
                                    2.5%
                                 | |
| 2013 | 1125 | 
                                    
                                    2.4%
                                 | |
| 2014 | 1200 | 
                                    
                                    2.6%
                                 | |
| 2015 | 1168 | 
                                    
                                    2.5%
                                 | |
| 2016 | 1299 | 
                                    
                                    2.8%
                                 | |
| 2017 | 1317 | 
                                    
                                    2.8%
                                 | |
| 2018 | 1359 | 
                                    
                                    2.9%
                                 | |
| 2019 | 1227 | 
                                    
                                    2.6%
                                 | |
| 2020 | 13 | 
                                    
                                    0%
                                 | |
| 9998 | DK | 102 | 
                                    
                                    0.2%
                                 |