| Value | Category | Cases | |
|---|---|---|---|
| 2003 | 7 |
0.9%
|
|
| 2004 | 28 |
3.6%
|
|
| 2005 | 52 |
6.8%
|
|
| 2006 | 48 |
6.3%
|
|
| 2007 | 58 |
7.6%
|
|
| 2008 | 61 |
7.9%
|
|
| 2009 | 54 |
7%
|
|
| 2010 | 41 |
5.3%
|
|
| 2011 | 67 |
8.7%
|
|
| 2012 | 81 |
10.5%
|
|
| 2013 | 82 |
10.7%
|
|
| 2014 | 87 |
11.3%
|
|
| 2015 | 99 |
12.9%
|
|
| 2016 | 3 |
0.4%
|
|
| Sysmiss | 11639 |