| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 year | 1360 |
7.4%
|
| 2 | 1 to 2 years | 2142 |
11.7%
|
| 3 | 3 to 4 years | 2296 |
12.5%
|
| 4 | 5 to 9 years | 3840 |
21%
|
| 5 | 10 years or more | 8686 |
47.4%
|
| Sysmiss | 26718 |