| Value | Category | Cases | |
|---|---|---|---|
| 0 | <12 months | 1713 |
26.2%
|
| 1 | 1 year | 939 |
14.4%
|
| 2 | 2 years | 1825 |
27.9%
|
| 3 | 3 years | 824 |
12.6%
|
| 4 | 4 years | 158 |
2.4%
|
| 5 | 5 years | 93 |
1.4%
|
| 6 | 6+ years | 81 |
1.2%
|
| 7 | Non-numeric | 227 |
3.5%
|
| 8 | Don't know | 674 |
10.3%
|
| 9 | Missing | 86 | |
| Sysmiss | 10102 |