| Value | Category | Cases | |
|---|---|---|---|
| 2000 | 32 |
0.4%
|
|
| 2001 | 352 |
4.6%
|
|
| 2002 | 443 |
5.8%
|
|
| 2003 | 416 |
5.5%
|
|
| 2004 | 475 |
6.2%
|
|
| 2005 | 465 |
6.1%
|
|
| 2006 | 467 |
6.1%
|
|
| 2007 | 593 |
7.8%
|
|
| 2008 | 615 |
8.1%
|
|
| 2009 | 647 |
8.5%
|
|
| 2010 | 664 |
8.7%
|
|
| 2011 | 741 |
9.7%
|
|
| 2012 | 835 |
10.9%
|
|
| 2013 | 699 |
9.2%
|
|
| 9999 | NO RESPONSE | 1 |
0%
|
| Sysmiss | 183 |
2.4%
|