| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. less than 15 minutes | 61875 |
23.5%
|
| 2 | 2. 15-30 minutes | 112573 |
42.7%
|
| 3 | 3. 31-60 minutes | 68275 |
25.9%
|
| 4 | 4. 61-90 minutes | 14292 |
5.4%
|
| 5 | 5. more than 90 minutes | 3792 |
1.4%
|
| 6 | 6. do not know | 2816 |
1.1%
|
| 8 | 8. not applicable | 0 |
0%
|
| 9 | 9. unspecified | 0 |
0%
|
| Sysmiss | 2184427 |