| Value | Category | Cases | |
|---|---|---|---|
| 1 | year | 23 |
14.5%
|
| 2 | 2-5 year | 79 |
49.7%
|
| 3 | 6 year and over | 57 |
35.8%
|
| Sysmiss | don't know | 0 | |
| Sysmiss | refusal | 0 | |
| Sysmiss | skipped | 0 | |
| Sysmiss | .x. censored | 0 | |
| Sysmiss | 137 |