| Value | Category | Cases | |
|---|---|---|---|
| 1965 | 1 |
0%
|
|
| 1967 | 4 |
0%
|
|
| 1968 | 27 |
0%
|
|
| 1969 | 38 |
0%
|
|
| 1970 | 243 |
0.1%
|
|
| 1971 | 721 |
0.3%
|
|
| 1972 | 2575 |
1.2%
|
|
| 1973 | 1334 |
0.6%
|
|
| 1974 | 797 |
0.4%
|
|
| 1975 | 2101 |
1%
|
|
| 1976 | 2500 |
1.2%
|
|
| 1977 | 3612 |
1.7%
|
|
| 1978 | 4424 |
2.1%
|
|
| 1979 | 12660 |
5.9%
|
|
| 1980 | 239 |
0.1%
|
|
| 1981 | 361 |
0.2%
|
|
| 1982 | 3316 |
1.5%
|
|
| 1983 | 2797 |
1.3%
|
|
| 1984 | 8189 |
3.8%
|
|
| 1985 | 4870 |
2.3%
|
|
| 1986 | 2373 |
1.1%
|
|
| 1987 | 4523 |
2.1%
|
|
| 1988 | 6501 |
3%
|
|
| 1989 | 16949 |
7.9%
|
|
| 1990 | 25038 |
11.7%
|
|
| 1991 | 3140 |
1.5%
|
|
| 1992 | 11135 |
5.2%
|
|
| 1993 | 8402 |
3.9%
|
|
| 1994 | 3696 |
1.7%
|
|
| 1995 | 3123 |
1.5%
|
|
| 1996 | 2963 |
1.4%
|
|
| 1997 | 5191 |
2.4%
|
|
| 1998 | 8023 |
3.7%
|
|
| 1999 | 4381 |
2%
|
|
| 2000 | 3940 |
1.8%
|
|
| 2001 | 3884 |
1.8%
|
|
| 2002 | 2858 |
1.3%
|
|
| 2003 | 3970 |
1.8%
|
|
| 2004 | 3793 |
1.8%
|
|
| 2005 | 19685 |
9.2%
|
|
| 2006 | 8154 |
3.8%
|
|
| 2007 | 9885 |
4.6%
|
|
| 2008 | 2484 |
1.2%
|