| Value | Category | Cases | |
|---|---|---|---|
| 1940 | 19 |
0.2%
|
|
| 1945 | 3 |
0%
|
|
| 1947 | 1 |
0%
|
|
| 1948 | 2 |
0%
|
|
| 1949 | 6 |
0.1%
|
|
| 1950 | 21 |
0.2%
|
|
| 1951 | 5 |
0%
|
|
| 1952 | 6 |
0.1%
|
|
| 1953 | 4 |
0%
|
|
| 1954 | 6 |
0.1%
|
|
| 1955 | 17 |
0.2%
|
|
| 1956 | 4 |
0%
|
|
| 1957 | 6 |
0.1%
|
|
| 1958 | 4 |
0%
|
|
| 1959 | 7 |
0.1%
|
|
| 1960 | 47 |
0.4%
|
|
| 1961 | 5 |
0%
|
|
| 1962 | 7 |
0.1%
|
|
| 1963 | 3 |
0%
|
|
| 1964 | 16 |
0.1%
|
|
| 1965 | 35 |
0.3%
|
|
| 1966 | 4 |
0%
|
|
| 1967 | 14 |
0.1%
|
|
| 1968 | 19 |
0.2%
|
|
| 1969 | 23 |
0.2%
|
|
| 1970 | 59 |
0.5%
|
|
| 1971 | 11 |
0.1%
|
|
| 1972 | 10 |
0.1%
|
|
| 1973 | 12 |
0.1%
|
|
| 1974 | 6 |
0.1%
|
|
| 1975 | 16 |
0.1%
|
|
| 1976 | 2 |
0%
|
|
| 1977 | 4 |
0%
|
|
| 1978 | 8 |
0.1%
|
|
| 1979 | 168 |
1.5%
|
|
| 1980 | 224 |
2%
|
|
| 1981 | 75 |
0.7%
|
|
| 1982 | 111 |
1%
|
|
| 1983 | 122 |
1.1%
|
|
| 1984 | 113 |
1%
|
|
| 1985 | 206 |
1.8%
|
|
| 1986 | 126 |
1.1%
|
|
| 1987 | 165 |
1.5%
|
|
| 1988 | 127 |
1.1%
|
|
| 1989 | 228 |
2%
|
|
| 1990 | 411 |
3.6%
|
|
| 1991 | 142 |
1.3%
|
|
| 1992 | 185 |
1.6%
|
|
| 1993 | 321 |
2.8%
|
|
| 1994 | 269 |
2.4%
|
|
| 1995 | 353 |
3.1%
|
|
| 1996 | 246 |
2.2%
|
|
| 1997 | 323 |
2.9%
|
|
| 1998 | 438 |
3.9%
|
|
| 1999 | 516 |
4.6%
|
|
| 2000 | 717 |
6.3%
|
|
| 2001 | 464 |
4.1%
|
|
| 2002 | 525 |
4.6%
|
|
| 2003 | 546 |
4.8%
|
|
| 2004 | 664 |
5.9%
|
|
| 2005 | 683 |
6%
|
|
| 2006 | 721 |
6.4%
|
|
| 2007 | 913 |
8.1%
|
|
| 2008 | 611 |
5.4%
|
|
| 2009 | 197 |
1.7%
|