| Value | Category | Cases | |
|---|---|---|---|
| 0 | 24 |
0.5%
|
|
| 1949 | 1 |
0%
|
|
| 1950 | 1 |
0%
|
|
| 1953 | 1 |
0%
|
|
| 1956 | 1 |
0%
|
|
| 1957 | 9 |
0.2%
|
|
| 1958 | 8 |
0.2%
|
|
| 1959 | 11 |
0.2%
|
|
| 1960 | 15 |
0.3%
|
|
| 1961 | 12 |
0.2%
|
|
| 1962 | 11 |
0.2%
|
|
| 1963 | 5 |
0.1%
|
|
| 1964 | 19 |
0.4%
|
|
| 1965 | 13 |
0.3%
|
|
| 1966 | 10 |
0.2%
|
|
| 1967 | 17 |
0.4%
|
|
| 1968 | 21 |
0.4%
|
|
| 1969 | 14 |
0.3%
|
|
| 1970 | 27 |
0.6%
|
|
| 1971 | 25 |
0.5%
|
|
| 1972 | 57 |
1.2%
|
|
| 1973 | 24 |
0.5%
|
|
| 1974 | 43 |
0.9%
|
|
| 1975 | 38 |
0.8%
|
|
| 1976 | 45 |
0.9%
|
|
| 1977 | 46 |
0.9%
|
|
| 1978 | 74 |
1.5%
|
|
| 1979 | 88 |
1.8%
|
|
| 1980 | 98 |
2%
|
|
| 1981 | 85 |
1.8%
|
|
| 1982 | 95 |
2%
|
|
| 1983 | 98 |
2%
|
|
| 1984 | 104 |
2.1%
|
|
| 1985 | 124 |
2.6%
|
|
| 1986 | 102 |
2.1%
|
|
| 1987 | 99 |
2%
|
|
| 1988 | 90 |
1.9%
|
|
| 1989 | 90 |
1.9%
|
|
| 1990 | 114 |
2.4%
|
|
| 1991 | 117 |
2.4%
|
|
| 1992 | 132 |
2.7%
|
|
| 1993 | 230 |
4.7%
|
|
| 1994 | 252 |
5.2%
|
|
| 1995 | 138 |
2.8%
|
|
| 1996 | 174 |
3.6%
|
|
| 1997 | 183 |
3.8%
|
|
| 1998 | 199 |
4.1%
|
|
| 1999 | 256 |
5.3%
|
|
| 2000 | 309 |
6.4%
|
|
| 2001 | 318 |
6.6%
|
|
| 2002 | 312 |
6.4%
|
|
| 2003 | 263 |
5.4%
|
|
| 2004 | 204 |
4.2%
|