| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 6 months | 965 |
15%
|
| 2 | Less than 1 year | 1210 |
18.8%
|
| 3 | Less than 2 years | 1095 |
17%
|
| 4 | 2 to 3 years | 1027 |
16%
|
| 5 | more than 3 years | 2136 |
33.2%
|
| Sysmiss | 8 |