| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not coded | 1210 |
59.6%
|
| 1 | Less than 12 months | 292 |
14.4%
|
| 2 | 12-23 months | 0 |
0%
|
| 3 | 2 years or more | 0 |
0%
|
| 8 | Not coded | 529 |
26%
|
| 9 | Missing | 1 | |
| Sysmiss | 540 |