| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 year | 14 |
63.6%
|
| 2 | 1-2 years | 2 |
9.1%
|
| 3 | 3-5 years | 3 |
13.6%
|
| 4 | 6-10 years | 1 |
4.5%
|
| 5 | 11 years or more | 2 |
9.1%
|
| Sysmiss | 41559 |