| Value | Category | Cases | |
|---|---|---|---|
| 0 | <12 months | 2094 |
11.1%
|
| 1 | 1 year | 1723 |
9.2%
|
| 2 | 2 years | 3573 |
19%
|
| 3 | 3 years | 3193 |
17%
|
| 4 | 4 years | 1703 |
9.1%
|
| 5 | 5 years | 3792 |
20.2%
|
| 6 | 6+ years | 1214 |
6.5%
|
| 7 | Non-numeric | 911 |
4.8%
|
| 8 | Don't know | 593 |
3.2%
|
| 9 | 16 | ||
| Sysmiss | 30395 |