| Value | Category | Cases | |
|---|---|---|---|
| 2000 | 1 |
0.1%
|
|
| 2001 | 47 |
6%
|
|
| 2002 | 47 |
6%
|
|
| 2003 | 46 |
5.9%
|
|
| 2004 | 49 |
6.3%
|
|
| 2005 | 50 |
6.4%
|
|
| 2006 | 48 |
6.1%
|
|
| 2007 | 51 |
6.5%
|
|
| 2008 | 38 |
4.8%
|
|
| 2009 | 73 |
9.3%
|
|
| 2010 | 72 |
9.2%
|
|
| 2011 | 73 |
9.3%
|
|
| 2012 | 68 |
8.7%
|
|
| 2013 | 83 |
10.6%
|
|
| 2014 | 17 |
2.2%
|
|
| 9999 | NO RESPONSE | 1 |
0.1%
|
| Sysmiss | 20 |
2.6%
|