| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than a year | 684 |
32%
|
| 2 | 1 year to less than 3 years | 1072 |
50.2%
|
| 3 | 3 years or more | 364 |
17%
|
| 9 | Unspecified | 17 |
0.8%
|
| Sysmiss | 64409 |