| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 month | 131 |
27.7%
|
| 2 | 1 month | 143 |
30.2%
|
| 3 | 6 weeks | 21 |
4.4%
|
| 4 | 2 months | 41 |
8.7%
|
| 5 | 3 months | 34 |
7.2%
|
| 6 | 4+months | 2 |
0.4%
|
| 88 | doesn't know | 101 |
21.4%
|
| Sysmiss | 8102 |