| Value | Category | Cases | |
|---|---|---|---|
| 2013 | 1 |
1%
|
|
| 2014 | 3 |
3%
|
|
| 2015 | 37 |
36.6%
|
|
| 2016 | 60 |
59.4%
|
|
| Sysmiss | 64047 |