| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. ___year | 6488 |
98.6%
|
| 3 | 3. Less than 1 year | 65 |
1%
|
| 8 | 8. DOn't know | 27 |
0.4%
|
| 9 | 1 |
0%
|