| Value | Category | Cases | |
|---|---|---|---|
| 0 | <12 months | 3483 |
20%
|
| 1 | 1 year | 1747 |
10%
|
| 2 | 2 years | 3087 |
17.7%
|
| 3 | 3 years | 3386 |
19.4%
|
| 4 | 4 years | 1519 |
8.7%
|
| 5 | 5 years | 2415 |
13.9%
|
| 6 | 6+ years | 917 |
5.3%
|
| 7 | Non-numeric | 665 |
3.8%
|
| 8 | Don't know | 191 |
1.1%
|
| Sysmiss | 19759 |