| Value | Category | Cases | |
|---|---|---|---|
| 2010 | 177 |
3.8%
|
|
| 2011 | 553 |
11.8%
|
|
| 2012 | 772 |
16.5%
|
|
| 2013 | 928 |
19.8%
|
|
| 2014 | 1153 |
24.7%
|
|
| 2015 | 1044 |
22.3%
|
|
| 2016 | 49 |
1%
|
|
| Sysmiss | 39938 |