| Value | Category | Cases | |
|---|---|---|---|
| 2006 | 1 |
7.7%
|
|
| 2007 | 1 |
7.7%
|
|
| 2008 | 3 |
23.1%
|
|
| 2009 | 1 |
7.7%
|
|
| 2010 | 7 |
53.8%
|
|
| 9997 | inconsistent | 0 |
0%
|
| 9998 | dk | 0 |
0%
|
| 10001 | .Z | 15654 |