| Value | Category | Cases | |
|---|---|---|---|
| 0 | <12 months | 1610 |
23.1%
|
| 1 | 1 year | 617 |
8.8%
|
| 2 | 2 years | 1173 |
16.8%
|
| 3 | 3 years | 917 |
13.1%
|
| 4 | 4 years | 375 |
5.4%
|
| 5 | 5 years | 1029 |
14.8%
|
| 6 | 6+ years | 449 |
6.4%
|
| 7 | Non-numeric | 601 |
8.6%
|
| 8 | Don't know | 204 |
2.9%
|
| 9 | 3 | ||
| Sysmiss | 15556 |