| Value | Category | Cases | |
|---|---|---|---|
| 1990 | 52 |
6.2%
|
|
| 1991 | 59 |
7%
|
|
| 1992 | 116 |
13.8%
|
|
| 1993 | 123 |
14.6%
|
|
| 1994 | 46 |
5.5%
|
|
| 1995 | 46 |
5.5%
|
|
| 1996 | 66 |
7.8%
|
|
| 1997 | 53 |
6.3%
|
|
| 1998 | 43 |
5.1%
|
|
| 1999 | 51 |
6%
|
|
| 2000 | 57 |
6.8%
|
|
| 2001 | 51 |
6%
|
|
| 2002 | 56 |
6.6%
|
|
| 2003 | 24 |
2.8%
|
|
| Sysmiss | 16004 |