| Value | Category | Cases | |
|---|---|---|---|
| 2008 | 1 |
10%
|
|
| 2013 | 1 |
10%
|
|
| 2015 | 3 |
30%
|
|
| 2016 | 1 |
10%
|
|
| 2017 | 1 |
10%
|
|
| 2018 | 3 |
30%
|
|
| Sysmiss | 1637 |