| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 15mn | 410 |
49.2%
|
| 2 | 15mn-30mn | 124 |
14.9%
|
| 3 | 30mn-60mn | 168 |
20.2%
|
| 4 | 1hour-2hours | 102 |
12.2%
|
| 6 | Over 2 hours | 29 |
3.5%
|
| Sysmiss | 3535 |