| Value | Category | Cases | |
|---|---|---|---|
| 1990 | 38 |
5.1%
|
|
| 1991 | 92 |
12.5%
|
|
| 1992 | 83 |
11.2%
|
|
| 1993 | 63 |
8.5%
|
|
| 1994 | 47 |
6.4%
|
|
| 1995 | 53 |
7.2%
|
|
| 1996 | 33 |
4.5%
|
|
| 1997 | 44 |
6%
|
|
| 1998 | 27 |
3.7%
|
|
| 1999 | 26 |
3.5%
|
|
| 2000 | 49 |
6.6%
|
|
| 2001 | 25 |
3.4%
|
|
| 2002 | 41 |
5.6%
|
|
| 2003 | 24 |
3.3%
|
|
| 2004 | 32 |
4.3%
|
|
| 2005 | 27 |
3.7%
|
|
| 2006 | 26 |
3.5%
|
|
| 2007 | 8 |
1.1%
|
|
| Sysmiss | 3906 |