| Value | Category | Cases | |
|---|---|---|---|
| 2000 | 1 |
7.7%
|
|
| 2004 | 1 |
7.7%
|
|
| 2015 | 2 |
15.4%
|
|
| 2016 | 6 |
46.2%
|
|
| 2017 | 3 |
23.1%
|
|
| Sysmiss | 5345 |