| value | category | cases | |
|---|---|---|---|
| 0 | <12 months | 3996 |
19.3%
|
| 1 | 1 year | 1552 |
7.5%
|
| 2 | 2 years | 3319 |
16%
|
| 3 | 3 years | 5115 |
24.7%
|
| 4 | 4 years | 2996 |
14.5%
|
| 5 | 5 years | 1839 |
8.9%
|
| 6 | 6+ years | 537 |
2.6%
|
| 7 | Non-numeric | 293 |
1.4%
|
| 8 | Don't know | 1044 |
5%
|
| Sysmiss | 20829 |