| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than a month | 72 |
49%
|
| 2 | 1 month to less than 6 months | 46 |
31.3%
|
| 3 | 6 months to less than a year | 5 |
3.4%
|
| 4 | 1 - 2 years | 13 |
8.8%
|
| 5 | More than 2 years | 10 |
6.8%
|
| d | 1 |
0.7%
|
|
| Sysmiss | 778 |