| Value | Category | Cases | |
|---|---|---|---|
| -95 | Missing | 0 |
0%
|
| 2005 | 14 |
10.8%
|
|
| 2006 | 55 |
42.3%
|
|
| 2007 | 7 |
5.4%
|
|
| 2008 | 5 |
3.8%
|
|
| 2009 | 8 |
6.2%
|
|
| 2010 | 33 |
25.4%
|
|
| 2011 | 8 |
6.2%
|
|
| Sysmiss | 80 |