| Value | Category | Cases | |
|---|---|---|---|
| 2000 | 1 |
0.1%
|
|
| 2001 | 1 |
0.1%
|
|
| 2002 | 6 |
0.8%
|
|
| 2004 | 8 |
1.1%
|
|
| 2005 | 21 |
2.9%
|
|
| 2006 | 27 |
3.8%
|
|
| 2007 | 27 |
3.8%
|
|
| 2008 | 37 |
5.2%
|
|
| 2009 | 50 |
7%
|
|
| 2010 | 96 |
13.5%
|
|
| 2011 | 85 |
11.9%
|
|
| 2012 | 163 |
22.9%
|
|
| 2013 | 135 |
19%
|
|
| 2014 | 55 |
7.7%
|
|
| Sysmiss | 396 |