| Value | Category | Cases | |
|---|---|---|---|
| 2001 | 87 |
2.5%
|
|
| 2002 | 228 |
6.7%
|
|
| 2003 | 245 |
7.2%
|
|
| 2004 | 214 |
6.3%
|
|
| 2005 | 219 |
6.4%
|
|
| 2006 | 200 |
5.8%
|
|
| 2007 | 233 |
6.8%
|
|
| 2008 | 249 |
7.3%
|
|
| 2009 | 253 |
7.4%
|
|
| 2010 | 253 |
7.4%
|
|
| 2011 | 244 |
7.1%
|
|
| 2012 | 262 |
7.7%
|
|
| 2013 | 348 |
10.2%
|
|
| 2014 | 211 |
6.2%
|
|
| 9999 | NO RESPONSE | 2 |
0.1%
|
| Sysmiss | 175 |
5.1%
|