| Value | Category | Cases | |
|---|---|---|---|
| 12 | 1 |
100%
|
|
| 24 | 2 years | 0 |
0%
|
| 36 | 3 years | 0 |
0%
|
| 48 | 4 years | 0 |
0%
|
| 60 | 5 years | 0 |
0%
|
| 98 | dont know | 0 |
0%
|
| Sysmiss | 5420 |