| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | 15 minutes | 1369 | 1489 |
46.7%
|
| 2 | 15-30 minutes | 1319 | 1424 |
44.7%
|
| 3 | over 30 minutes | 259 | 274 |
8.6%
|
| Sysmiss | 12053 | 11377 |