| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 2006 | 1 | 1 |
0.4%
|
|
| 2007 | 7 | 7 |
2.6%
|
|
| 2008 | 5 | 5 |
1.9%
|
|
| 2009 | 39 | 39 |
15.2%
|
|
| 2010 | 78 | 78 |
30.4%
|
|
| 2011 | 62 | 61 |
23.9%
|
|
| 9997 | Inconsistent (Secondary Editing) | 1 | 1 |
0.4%
|
| 9999 | Missing | 65 | 65 |
25.3%
|
| Sysmiss | 4569 | 4459 |