| Value | Category | Cases | |
|---|---|---|---|
| 2010 | 1 |
16.7%
|
|
| 2015 | 1 |
16.7%
|
|
| 2016 | 2 |
33.3%
|
|
| 2017 | 1 |
16.7%
|
|
| 9999 | 1 |
16.7%
|
|
| Sysmiss | 2632 |