| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 4 |
1.7%
|
| 0 | No time was spent | 13 |
5.4%
|
| 1 | 18 |
7.4%
|
|
| 2 | 30 |
12.4%
|
|
| 3 | 5 |
2.1%
|
|
| 4 | 3 |
1.2%
|
|
| 5 | 53 |
21.9%
|
|
| 6 | 3 |
1.2%
|
|
| 7 | 4 |
1.7%
|
|
| 8 | 3 |
1.2%
|
|
| 10 | 52 |
21.5%
|
|
| 14 | 1 |
0.4%
|
|
| 15 | 12 |
5%
|
|
| 16 | 1 |
0.4%
|
|
| 20 | 18 |
7.4%
|
|
| 25 | 6 |
2.5%
|
|
| 30 | 3 |
1.2%
|
|
| 35 | 2 |
0.8%
|
|
| 40 | 1 |
0.4%
|
|
| 50 | 7 |
2.9%
|
|
| 70 | 1 |
0.4%
|
|
| 75 | 1 |
0.4%
|
|
| 100 | 1 |
0.4%
|