| Value | Category | Cases | |
|---|---|---|---|
| 0 | <12 months | 408 |
29.3%
|
| 1 | 1 year | 229 |
16.5%
|
| 2 | 2 years | 458 |
32.9%
|
| 3 | 3 years | 154 |
11.1%
|
| 4 | 4 years | 56 |
4%
|
| 5 | 5 years | 39 |
2.8%
|
| 6 | 6+ years | 24 |
1.7%
|
| 7 | non-numeric | 1 |
0.1%
|
| 8 | don't know | 23 |
1.7%
|
| Sysmiss | 4029 |