| Value | Category | Cases | |
|---|---|---|---|
| 1996 | 3 |
0.1%
|
|
| 1997 | 29 |
1.1%
|
|
| 1998 | 100 |
3.8%
|
|
| 1999 | 138 |
5.2%
|
|
| 2000 | 154 |
5.8%
|
|
| 2001 | 150 |
5.7%
|
|
| 2002 | 164 |
6.2%
|
|
| 2003 | 124 |
4.7%
|
|
| 2004 | 104 |
3.9%
|
|
| 2005 | 155 |
5.9%
|
|
| 2006 | 174 |
6.6%
|
|
| 2007 | 173 |
6.6%
|
|
| 2008 | 192 |
7.3%
|
|
| 2009 | 206 |
7.8%
|
|
| 2010 | 216 |
8.2%
|
|
| 2011 | 213 |
8.1%
|
|
| 2012 | 188 |
7.1%
|
|
| 2013 | 114 |
4.3%
|
|
| 2014 | 27 |
1%
|
|
| 2015 | 14 |
0.5%
|
|
| Sysmiss | 9769 |