| Value | Category | Cases | |
|---|---|---|---|
| 0 | <12 months | 519 |
15.1%
|
| 1 | 1 year | 545 |
15.9%
|
| 2 | 2 years | 792 |
23.1%
|
| 3 | 3 years | 578 |
16.8%
|
| 4 | 4 years | 284 |
8.3%
|
| 5 | 5 years | 433 |
12.6%
|
| 6 | 6+ years | 169 |
4.9%
|
| 7 | Non-numeric | 29 |
0.8%
|
| 8 | Don't know | 82 |
2.4%
|
| 9 | 11 | ||
| Sysmiss | 9377 |