| Value | Category | Cases | |
|---|---|---|---|
| 2010 | 13 |
2.2%
|
|
| 2011 | 40 |
6.8%
|
|
| 2012 | 67 |
11.3%
|
|
| 2013 | 81 |
13.7%
|
|
| 2014 | 174 |
29.4%
|
|
| 2015 | 203 |
34.3%
|
|
| 2016 | 14 |
2.4%
|
|
| Sysmiss | 44022 |