| Value | Category | Cases | |
|---|---|---|---|
| 2002 | 1 |
0.1%
|
|
| 2003 | 12 |
1.8%
|
|
| 2004 | 44 |
6.5%
|
|
| 2005 | 63 |
9.3%
|
|
| 2006 | 69 |
10.2%
|
|
| 2007 | 54 |
8%
|
|
| 2008 | 64 |
9.4%
|
|
| 2009 | 50 |
7.4%
|
|
| 2010 | 46 |
6.8%
|
|
| 2011 | 49 |
7.2%
|
|
| 2012 | 51 |
7.5%
|
|
| 2013 | 57 |
8.4%
|
|
| 2014 | 60 |
8.8%
|
|
| 2015 | 58 |
8.6%
|
|
| Sysmiss | 11729 |