| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. | 4 |
|
21.1%
|
| 2 | 2. 1-4 months | 2 |
10.5%
|
| 3 | 3. 5-12 months | 3 |
15.8%
|
| 4 | 4. >one year | 0 |
0%
|
| 5 | 5. still continuing | 10 |
52.6%
|
| 8 | 8. refused | 0 |
0%
|
| 9 | 9. don't know | 0 |
0%
|
| Sysmiss | 80 |