| Value | Category | Cases | |
|---|---|---|---|
| 2013 | 4 |
0%
|
|
| 2014 | 12 |
0.1%
|
|
| 2015 | 8894 |
99.2%
|
|
| 2016 | 60 |
0.7%
|
|
| Sysmiss | 1 |