| Value | Category | Cases | |
|---|---|---|---|
| 0 | <12 months | 187 |
5%
|
| 1 | 1 year | 182 |
4.8%
|
| 2 | 2 years | 325 |
8.6%
|
| 3 | 3 years | 500 |
13.3%
|
| 4 | 4 years | 284 |
7.5%
|
| 5 | 5 years | 944 |
25%
|
| 6 | 6+ years | 1106 |
29.3%
|
| 7 | non-numeric | 231 |
6.1%
|
| 8 | don't know | 10 |
0.3%
|
| Sysmiss | 4323 |