| Value | Category | Cases | |
|---|---|---|---|
| 2010 | 15 |
3.6%
|
|
| 2011 | 10 |
2.4%
|
|
| 2012 | 35 |
8.4%
|
|
| 2013 | 44 |
10.5%
|
|
| 2014 | 77 |
18.4%
|
|
| 2015 | 175 |
41.9%
|
|
| 2016 | 62 |
14.8%
|
|
| Sysmiss | 54566 |