| Value | Category | Cases | |
|---|---|---|---|
| 0 | <12 months | 437 |
8.7%
|
| 1 | 1 year | 464 |
9.3%
|
| 2 | 2 years | 956 |
19.1%
|
| 3 | 3 years | 917 |
18.3%
|
| 4 | 4 years | 406 |
8.1%
|
| 5 | 5 years | 1118 |
22.3%
|
| 6 | 6+ years | 543 |
10.8%
|
| 7 | Non-numeric | 121 |
2.4%
|
| 8 | Don't know | 46 |
0.9%
|
| Sysmiss | 15956 |