| Value | Category | Cases | |
|---|---|---|---|
| 2000 | 1 |
0.3%
|
|
| 2001 | 2 |
0.7%
|
|
| 2005 | 1 |
0.3%
|
|
| 2006 | 1 |
0.3%
|
|
| 2007 | 4 |
1.3%
|
|
| 2008 | 1 |
0.3%
|
|
| 2009 | 10 |
3.3%
|
|
| 2010 | 25 |
8.4%
|
|
| 2011 | 34 |
11.4%
|
|
| 2012 | 44 |
14.7%
|
|
| 2013 | 71 |
23.7%
|
|
| 2014 | 92 |
30.8%
|
|
| 2015 | 13 |
4.3%
|
|
| Sysmiss | 893 |