| Value | Category | Cases | |
|---|---|---|---|
| 1986 | 2 |
14.3%
|
|
| 1994 | 1 |
7.1%
|
|
| 1996 | 1 |
7.1%
|
|
| 2001 | 1 |
7.1%
|
|
| 2006 | 1 |
7.1%
|
|
| 2013 | 6 |
42.9%
|
|
| 2014 | 1 |
7.1%
|
|
| 2015 | 1 |
7.1%
|
|
| Sysmiss | 32125 |