| Value | Category | Cases | |
|---|---|---|---|
| 1 | Years | 28 |
93.3%
|
| 2 | Months | 1 |
3.3%
|
| 3 | Weeks | 1 |
3.3%
|
| 4 | Days | 0 |
0%
|
| 5 | Less Than 1 Day | 0 |
0%
|
| 7 | Don't Know | 0 |
0%
|
| Sysmiss | 8368 |