| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 month | 89 |
6.8%
|
| 2 | 1-2 months | 272 |
20.6%
|
| 3 | 3-5 months | 305 |
23.1%
|
| 4 | 6-11 months | 244 |
18.5%
|
| 5 | 1-2 years | 233 |
17.7%
|
| 6 | 3 years or more | 175 |
13.3%
|
| Sysmiss | 45878 |