| Value | Category | Cases | |
|---|---|---|---|
| 2010 | 77 |
3.7%
|
|
| 2011 | 128 |
6.2%
|
|
| 2012 | 336 |
16.2%
|
|
| 2013 | 510 |
24.7%
|
|
| 2014 | 891 |
43.1%
|
|
| 2015 | 112 |
5.4%
|
|
| 2016 | 14 |
0.7%
|
|
| Sysmiss | 10815 |