| Value | Category | Cases | |
|---|---|---|---|
| 0 | <12 months | 258 |
24.9%
|
| 1 | 1 year | 124 |
12%
|
| 2 | 2 years | 256 |
24.7%
|
| 3 | 3 years | 166 |
16%
|
| 4 | 4 years | 75 |
7.2%
|
| 5 | 5 years | 108 |
10.4%
|
| 6 | 6+ years | 25 |
2.4%
|
| 7 | Non-numeric | 13 |
1.3%
|
| 8 | Don't know | 11 |
1.1%
|