| Value | Category | Cases | |
|---|---|---|---|
| 1 | 2012 | 325 |
4.4%
|
| 2 | 2011 | 781 |
10.5%
|
| 3 | 2010 | 973 |
13%
|
| 4 | 2009 | 891 |
11.9%
|
| 5 | 2008 | 748 |
10%
|
| 6 | 2007 | 612 |
8.2%
|
| 7 | 2006 | 527 |
7.1%
|
| 8 | 2005 | 448 |
6%
|
| 9 | 2004 or earlier | 2160 |
28.9%
|
| Sysmiss | 17643 |