| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than one month | 334 |
42.3%
|
| 2 | 1-2 months | 206 |
26.1%
|
| 3 | 3-5 months | 116 |
14.7%
|
| 4 | More than 5 months | 134 |
17%
|
| 2147483622 | Don't know | 0 |
0%
|
| 2147483623 | Refuse to respond | 0 |
0%
|
| 2147483647 | Not administered | 0 |
0%
|
| 11 | .Z | 20177 | |
| Sysmiss | 59 |