| Value | Category | Cases | |
|---|---|---|---|
| 1 | No training | 0 |
0%
|
| 2 | 1-2 weeks | 0 |
0%
|
| 3 | 3-4 weeks | 0 |
0%
|
| 4 | 2-6 months | 0 |
0%
|
| 5 | 7-12 months | 0 |
0%
|
| 6 | 12-24 months | 0 |
0%
|
| 7 | more than 2 years | 146 |
100%
|
| 99 | Don't know | 0 |
0%
|
| Sysmiss | 34666 |