| Value | Category | Cases | |
|---|---|---|---|
| 2010 | 6 |
0.2%
|
|
| 2011 | 162 |
5.5%
|
|
| 2012 | 343 |
11.6%
|
|
| 2013 | 424 |
14.3%
|
|
| 2014 | 783 |
26.5%
|
|
| 2015 | 527 |
17.8%
|
|
| 9998 | 713 |
24.1%
|
|
| Sysmiss | 4398 |