| Value | Category | Cases | |
|---|---|---|---|
| 2011 | 14 |
28%
|
|
| 2012 | 27 |
54%
|
|
| 9998 | don't know | 2 |
4%
|
| 9999 | never visit household | 7 |
14%
|
| Sysmiss | 49136 |