| Value | Category | Cases | |
|---|---|---|---|
| -95 | Missing | 0 |
0%
|
| 2005 | 1 |
1.9%
|
|
| 2006 | 10 |
18.9%
|
|
| 2007 | 7 |
13.2%
|
|
| 2008 | 10 |
18.9%
|
|
| 2009 | 12 |
22.6%
|
|
| 2010 | 11 |
20.8%
|
|
| 2011 | 2 |
3.8%
|
|
| Sysmiss | 157 |