| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 year | 226 |
15.3%
|
| 2 | 1-2 | 464 |
31.4%
|
| 3 | 3-4 | 290 |
19.6%
|
| 4 | 5-7 | 212 |
14.4%
|
| 5 | 8-10 | 128 |
8.7%
|
| 6 | 11-13 | 42 |
2.8%
|
| 7 | 14+ | 102 |
6.9%
|
| 9 | Not Specified | 12 |
0.8%
|
| Sysmiss | 2536 |