| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 year | 2851 |
33%
|
| 2 | 1-2 years | 1750 |
20.2%
|
| 3 | 3-5 years | 1539 |
17.8%
|
| 4 | 6-10 years | 1055 |
12.2%
|
| 5 | 11 years or more | 1447 |
16.7%
|
| Sysmiss | 32939 |