| Value | Category | Cases | |
|---|---|---|---|
| -95 | Missing | 0 |
0%
|
| 2005 | 7 |
6.2%
|
|
| 2006 | 32 |
28.3%
|
|
| 2007 | 14 |
12.4%
|
|
| 2008 | 9 |
8%
|
|
| 2009 | 21 |
18.6%
|
|
| 2010 | 29 |
25.7%
|
|
| 2011 | 1 |
0.9%
|
|
| Sysmiss | 97 |