| Value | Category | Cases | |
|---|---|---|---|
| 2005 | 169 |
3.9%
|
|
| 2006 | 892 |
20.4%
|
|
| 2007 | 833 |
19.1%
|
|
| 2008 | 935 |
21.4%
|
|
| 2009 | 894 |
20.4%
|
|
| 2010 | 649 |
14.8%
|
|
| 9997 | inconsistent | 0 |
0%
|
| 9998 | dk | 0 |
0%
|
| Sysmiss | 72548 |