| Value | Category | Cases | |
|---|---|---|---|
| 2004 | 15 |
5.1%
|
|
| 2005 | 12 |
4%
|
|
| 2006 | 48 |
16.2%
|
|
| 2008 | 2 |
0.7%
|
|
| 2009 | 6 |
2%
|
|
| 2010 | 34 |
11.4%
|
|
| 2011 | 17 |
5.7%
|
|
| 2012 | 13 |
4.4%
|
|
| 2013 | 5 |
1.7%
|
|
| 2016 | 19 |
6.4%
|
|
| 2017 | 63 |
21.2%
|
|
| 2018 | 63 |
21.2%
|
|
| Sysmiss | 1043 |