| Value | Category | Cases | |
|---|---|---|---|
| 2011 | 1 |
0.1%
|
|
| 2013 | 2 |
0.2%
|
|
| 2014 | 411 |
37.5%
|
|
| 2015 | 683 |
62.3%
|
|
| Sysmiss | 3441 |