| Value | Category | Cases | |
|---|---|---|---|
| 1990 | 69 |
2.6%
|
|
| 1991 | 87 |
3.3%
|
|
| 1992 | 132 |
5%
|
|
| 1993 | 94 |
3.5%
|
|
| 1994 | 118 |
4.4%
|
|
| 1995 | 155 |
5.8%
|
|
| 1996 | 96 |
3.6%
|
|
| 1997 | 147 |
5.5%
|
|
| 1998 | 191 |
7.2%
|
|
| 1999 | 130 |
4.9%
|
|
| 2000 | 364 |
13.7%
|
|
| 2001 | 90 |
3.4%
|
|
| 2002 | 178 |
6.7%
|
|
| 2003 | 78 |
2.9%
|
|
| 2004 | 105 |
3.9%
|
|
| 2005 | 170 |
6.4%
|
|
| 2006 | 125 |
4.7%
|
|
| 2007 | 85 |
3.2%
|
|
| 2008 | 96 |
3.6%
|
|
| 2009 | 47 |
1.8%
|
|
| 2010 | 80 |
3%
|
|
| 2011 | 14 |
0.5%
|
|
| 2012 | 14 |
0.5%
|
|
| Sysmiss | 4006 |