| Value | Category | Cases | |
|---|---|---|---|
| 1997 | 1 |
5.6%
|
|
| 1999 | 1 |
5.6%
|
|
| 2000 | 3 |
16.7%
|
|
| 2003 | 1 |
5.6%
|
|
| 2007 | 2 |
11.1%
|
|
| 2009 | 2 |
11.1%
|
|
| 2011 | 2 |
11.1%
|
|
| 2013 | 1 |
5.6%
|
|
| 2014 | 3 |
16.7%
|
|
| 2015 | 1 |
5.6%
|
|
| 2016 | 1 |
5.6%
|
|
| Sysmiss | 41994 |