| Value | Category | Cases | |
|---|---|---|---|
| 2008 | 11 |
22%
|
|
| 2009 | 18 |
36%
|
|
| 2010 | 19 |
38%
|
|
| 2222 | Not asked in Phase 2 | 0 |
0%
|
| 3333 | Missing | 0 |
0%
|
| 5555 | Not applicable | 0 |
0%
|
| 8888 | Refused | 1 |
2%
|
| 9999 | Don't know | 1 |
2%
|
| Sysmiss | 9075 |