| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 15 minutes | 97 |
36.1%
|
| 2 | 15 minutes or more, but less than 30 minute | 88 |
32.7%
|
| 3 | 30 minutes or more, but less than 1 hour | 55 |
20.4%
|
| 4 | 1 hour or more | 29 |
10.8%
|
| Sysmiss | 62216 |