| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | None | 64 | 33 |
10.8%
|
| 2 | 1 year | 78 | 46 |
15.1%
|
| 3 | 2 years | 106 | 62 |
20.4%
|
| 4 | 3 years | 151 | 72 |
23.6%
|
| 5 | 4 years | 103 | 92 |
30.2%
|
| Sysmiss | 11437 | 3705 |