| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 week | 4 |
4.3%
|
| 2 | 1 months | 11 |
12%
|
| 3 | 3 months | 11 |
12%
|
| 4 | 6 months | 4 |
4.3%
|
| 5 | 9 months | 3 |
3.3%
|
| 6 | 1 year | 4 |
4.3%
|
| 7 | More than 1 year | 54 |
58.7%
|
| 8 | Other (note) | 1 |
1.1%
|
| Sysmiss | 7704 |