| Value | Category | Cases | |
|---|---|---|---|
| 8 | NS | 2 |
4.7%
|
| 9 | NR | 0 |
0%
|
| 1975 | 1 |
2.3%
|
|
| 1999 | 1 |
2.3%
|
|
| 2000 | 3 |
7%
|
|
| 2006 | 2 |
4.7%
|
|
| 2007 | 1 |
2.3%
|
|
| 2008 | 1 |
2.3%
|
|
| 2010 | 3 |
7%
|
|
| 2011 | 8 |
18.6%
|
|
| 2012 | 5 |
11.6%
|
|
| 2013 | 13 |
30.2%
|
|
| 2014 | 3 |
7%
|
|
| Sysmiss | 33 |