| Value | Category | Cases | |
|---|---|---|---|
| 1967 | 1 |
0%
|
|
| 1968 | 2 |
0%
|
|
| 1969 | 1 |
0%
|
|
| 1970 | 6 |
0%
|
|
| 1971 | 29 |
0%
|
|
| 1972 | 35 |
0%
|
|
| 1973 | 29 |
0%
|
|
| 1974 | 57 |
0%
|
|
| 1975 | 80 |
0%
|
|
| 1976 | 157 |
0.1%
|
|
| 1977 | 293 |
0.1%
|
|
| 1978 | 285 |
0.1%
|
|
| 1979 | 565 |
0.3%
|
|
| 1980 | 355 |
0.2%
|
|
| 1981 | 367 |
0.2%
|
|
| 1982 | 914 |
0.4%
|
|
| 1983 | 803 |
0.4%
|
|
| 1984 | 1181 |
0.6%
|
|
| 1985 | 1256 |
0.6%
|
|
| 1986 | 1206 |
0.6%
|
|
| 1987 | 1297 |
0.6%
|
|
| 1988 | 1283 |
0.6%
|
|
| 1989 | 3806 |
1.8%
|
|
| 1990 | 6159 |
3%
|
|
| 1991 | 3131 |
1.5%
|
|
| 1992 | 4371 |
2.1%
|
|
| 1993 | 4529 |
2.2%
|
|
| 1994 | 4112 |
2%
|
|
| 1995 | 5175 |
2.5%
|
|
| 1996 | 5448 |
2.6%
|
|
| 1997 | 8727 |
4.2%
|
|
| 1998 | 10233 |
5%
|
|
| 1999 | 9567 |
4.6%
|
|
| 2000 | 12487 |
6.1%
|
|
| 2001 | 14140 |
6.9%
|
|
| 2002 | 13307 |
6.4%
|
|
| 2003 | 18241 |
8.8%
|
|
| 2004 | 15163 |
7.3%
|
|
| 2005 | 37599 |
18.2%
|
|
| 2006 | 19944 |
9.7%
|
|
| 2007 | 1 |
0%
|
|
| Sysmiss | 235 |