| Value | Category | Cases | |
|---|---|---|---|
| 0 | <12 months | 469 |
10.9%
|
| 1 | 1 year | 217 |
5.1%
|
| 2 | 2 years | 410 |
9.6%
|
| 3 | 3 years | 550 |
12.8%
|
| 4 | 4 years | 465 |
10.8%
|
| 5 | 5 years | 1028 |
24%
|
| 6 | 6+ years | 435 |
10.1%
|
| 7 | Non-numeric | 685 |
16%
|
| 8 | Don't know | 31 |
0.7%
|
| 9 | 1 | ||
| Sysmiss | 9499 |