| Value | Category | Cases | |
|---|---|---|---|
| 2012 | 1 |
0.7%
|
|
| 2013 | 15 |
9.8%
|
|
| 2014 | 38 |
24.8%
|
|
| 2015 | 64 |
41.8%
|
|
| 2016 | 35 |
22.9%
|
|
| Sysmiss | 12730 |