| Value | Category | Cases | |
|---|---|---|---|
| 2001 | 1 |
0.4%
|
|
| 2003 | 1 |
0.4%
|
|
| 2007 | 1 |
0.4%
|
|
| 2009 | 3 |
1.2%
|
|
| 2010 | 9 |
3.6%
|
|
| 2011 | 10 |
4%
|
|
| 2012 | 40 |
15.9%
|
|
| 2013 | 59 |
23.4%
|
|
| 2014 | 70 |
27.8%
|
|
| 2015 | 55 |
21.8%
|
|
| 2016 | 3 |
1.2%
|
|
| Sysmiss | 9838 |