| value | category | cases | |
|---|---|---|---|
| 0 | <12 months | 463 |
19.5%
|
| 1 | 1 year | 211 |
8.9%
|
| 2 | 2 years | 364 |
15.4%
|
| 3 | 3 years | 451 |
19%
|
| 4 | 4 years | 215 |
9.1%
|
| 5 | 5 years | 134 |
5.7%
|
| 6 | 6+ years | 134 |
5.7%
|
| 7 | Non-numeric | 247 |
10.4%
|
| 8 | Don't know | 152 |
6.4%
|
| Sysmiss | 1234 |