| Value | Category | Cases | |
|---|---|---|---|
| -95 | Missing | 0 |
0%
|
| 2005 | 7 |
16.3%
|
|
| 2006 | 14 |
32.6%
|
|
| 2007 | 4 |
9.3%
|
|
| 2008 | 2 |
4.7%
|
|
| 2009 | 4 |
9.3%
|
|
| 2010 | 12 |
27.9%
|
|
| Sysmiss | 167 |