| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. less than 2 weeks | 588 |
15.6%
|
| 2 | 2. between 2 weeks and 1 month | 1584 |
41.9%
|
| 3 | 3. between 1 month and 4 months | 741 |
19.6%
|
| 4 | 4. between 4 months and 12 months | 447 |
11.8%
|
| 5 | 5. between 1 year and 3 years | 231 |
6.1%
|
| 6 | 6. 3 years or more | 186 |
4.9%
|
| Sysmiss | 416 |