| Value | Category | Cases | |
|---|---|---|---|
| 2005 | 163 |
4.8%
|
|
| 2006 | 862 |
25.5%
|
|
| 2007 | 767 |
22.7%
|
|
| 2008 | 690 |
20.4%
|
|
| 2009 | 576 |
17%
|
|
| 2010 | 328 |
9.7%
|
|
| 9997 | inconsistent | 0 |
0%
|
| 9998 | dk | 0 |
0%
|
| 10001 | .Z | 12281 |