| Value | Category | Cases | |
|---|---|---|---|
| 1992 | 1 |
14.3%
|
|
| 1998 | 1 |
14.3%
|
|
| 2007 | 1 |
14.3%
|
|
| 2009 | 1 |
14.3%
|
|
| 2010 | 1 |
14.3%
|
|
| 2013 | 1 |
14.3%
|
|
| 2017 | 1 |
14.3%
|
|
| Sysmiss | 2631 |