| Value | Category | Cases | |
|---|---|---|---|
| 2009 | 6 |
0.2%
|
|
| 2010 | 347 |
9.8%
|
|
| 2011 | 662 |
18.6%
|
|
| 2012 | 804 |
22.6%
|
|
| 2013 | 988 |
27.8%
|
|
| 2014 | 747 |
21%
|
|
| 9997 | Inconsistent | 0 |
0%
|
| 9998 | Don't know | 0 |
0%
|
| Sysmiss | 17410 |