| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 4 |
2.6%
|
| 0 | No time was spent | 81 |
52.3%
|
| 1 | 11 |
7.1%
|
|
| 2 | 17 |
11%
|
|
| 3 | 7 |
4.5%
|
|
| 4 | 1 |
0.6%
|
|
| 5 | 18 |
11.6%
|
|
| 6 | 1 |
0.6%
|
|
| 7 | 1 |
0.6%
|
|
| 8 | 5 |
3.2%
|
|
| 9 | 1 |
0.6%
|
|
| 10 | 1 |
0.6%
|
|
| 15 | 1 |
0.6%
|
|
| 20 | 1 |
0.6%
|
|
| 40 | 1 |
0.6%
|
|
| 50 | 4 |
2.6%
|