7. 총 소요시간
| Value | Label | N | WN |
|---|---|---|---|
| - | 0 | 1 | 0 |
| - | 10 | 10 | 0 |
| - | 12 | 1 | 0 |
| - | 15 | 57 | 0 |
| - | 16 | 2 | 0 |
| - | 17 | 2 | 0 |
| - | 18 | 4 | 0 |
| - | 19 | 2 | 0 |
| - | 20 | 342 | 0 |
| - | 21 | 1 | 0 |
| - | 22 | 8 | 0 |
| - | 23 | 4 | 0 |
| - | 24 | 6 | 0 |
| - | 25 | 241 | 0 |
| - | 26 | 2 | 0 |
| - | 27 | 4 | 0 |
| - | 28 | 8 | 0 |
| - | 29 | 1 | 0 |
| - | 30 | 1,048 | 0 |
| - | 31 | 5 | 0 |
| - | 32 | 6 | 0 |
| - | 33 | 2 | 0 |
| - | 34 | 1 | 0 |
| - | 35 | 149 | 0 |
| - | 38 | 5 | 0 |
| - | 39 | 1 | 0 |
| - | 40 | 430 | 0 |
| - | 45 | 31 | 0 |
| - | 47 | 1 | 0 |
| - | 49 | 1 | 0 |
| - | 50 | 57 | 0 |
| - | 54 | 1 | 0 |
| - | 55 | 3 | 0 |
| - | 60 | 6 | 0 |
| - | 70 | 1 | 0 |
| - | 72 | 1 | 0 |
| - | 90 | 1 | 0 |
| 99 | 무응답 | 54 | 0 |
This variable is numeric