| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 month | 75 |
4.9%
|
| 2 | 1 to 2 months | 95 |
6.2%
|
| 3 | 3 to 6 months | 143 |
9.3%
|
| 4 | 7 to 11 months | 161 |
10.5%
|
| 5 | 1-2 years | 421 |
27.4%
|
| 6 | 3 or more years | 639 |
41.7%
|
| Sysmiss | 29073 |