| Value | Category | Cases | |
|---|---|---|---|
| 2001 | 1685 |
4.1%
|
|
| 2002 | 2989 |
7.4%
|
|
| 2003 | 3348 |
8.2%
|
|
| 2004 | 3163 |
7.8%
|
|
| 2005 | 3050 |
7.5%
|
|
| 2006 | 3077 |
7.6%
|
|
| 2007 | 3170 |
7.8%
|
|
| 2008 | 3063 |
7.5%
|
|
| 2009 | 2834 |
7%
|
|
| 2010 | 2968 |
7.3%
|
|
| 2011 | 3134 |
7.7%
|
|
| 2012 | 3104 |
7.6%
|
|
| 2013 | 3183 |
7.8%
|
|
| 2014 | 733 |
1.8%
|
|
| 9999 | NO RESPONSE | 6 |
0%
|
| Sysmiss | 1110 |
2.7%
|