| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes for 1 month or less | 1117 |
10.9%
|
| 2 | Yes for 1 to 2 months | 1566 |
15.2%
|
| 3 | Yes for 2 to 3 months | 1508 |
14.6%
|
| 4 | Above 3 months | 2274 |
22.1%
|
| 5 | No | 3829 |
37.2%
|
| Sysmiss | 372 |