| Value | Category | Cases | |
|---|---|---|---|
| -99 | Refused | 0 |
0%
|
| -98 | Don't Know | 0 |
0%
|
| -97 | Not Applicable | 0 |
0%
|
| 2012 | 2 |
40%
|
|
| 2013 | 3 |
60%
|
|
| Sysmiss | 2217 |