| Value | Category | Cases | |
|---|---|---|---|
| 2010 | 5 |
3.2%
|
|
| 2011 | 12 |
7.6%
|
|
| 2012 | 19 |
12.1%
|
|
| 2013 | 17 |
10.8%
|
|
| 2014 | 46 |
29.3%
|
|
| 2015 | 55 |
35%
|
|
| 2016 | 3 |
1.9%
|
|
| Sysmiss | 44457 |