| Value | Category | Cases | |
|---|---|---|---|
| 0 | <12 months | 1638 |
29%
|
| 1 | 1 year | 782 |
13.8%
|
| 2 | 2 years | 889 |
15.7%
|
| 3 | 3 years | 561 |
9.9%
|
| 4 | 4 years | 293 |
5.2%
|
| 5 | 5 years | 661 |
11.7%
|
| 6 | 6+ years | 491 |
8.7%
|
| 7 | non-numeric | 77 |
1.4%
|
| 8 | don't know | 255 |
4.5%
|
| Sysmiss | 30136 |