| Value | Category | Cases | |
|---|---|---|---|
| 2000 | 7 |
0.3%
|
|
| 2001 | 103 |
4.5%
|
|
| 2002 | 113 |
5%
|
|
| 2003 | 126 |
5.5%
|
|
| 2004 | 180 |
7.9%
|
|
| 2005 | 138 |
6.1%
|
|
| 2006 | 169 |
7.4%
|
|
| 2007 | 152 |
6.7%
|
|
| 2008 | 177 |
7.8%
|
|
| 2009 | 188 |
8.3%
|
|
| 2010 | 197 |
8.7%
|
|
| 2011 | 257 |
11.3%
|
|
| 2012 | 244 |
10.7%
|
|
| 2013 | 207 |
9.1%
|
|
| 9998 | DK | 3 |
0.1%
|
| Sysmiss | 11 |
0.5%
|