| Value | Category | Cases | |
|---|---|---|---|
| 1 | Years | 715 |
83.5%
|
| 2 | Months | 126 |
14.7%
|
| 3 | Weeks | 2 |
0.2%
|
| 4 | Days | 9 |
1.1%
|
| 5 | Less Than 1 Day | 0 |
0%
|
| 7 | Don't Know | 4 |
0.5%
|
| 9 | Refused | 0 |
0%
|
| Sysmiss | 12498 |