| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 25 |
7.8%
|
| 0 | No time was spent | 27 |
8.4%
|
| 1 | 24 |
7.5%
|
|
| 2 | 33 |
10.3%
|
|
| 3 | 6 |
1.9%
|
|
| 4 | 2 |
0.6%
|
|
| 5 | 74 |
23.1%
|
|
| 6 | 1 |
0.3%
|
|
| 7 | 3 |
0.9%
|
|
| 8 | 6 |
1.9%
|
|
| 10 | 47 |
14.7%
|
|
| 14 | 1 |
0.3%
|
|
| 15 | 17 |
5.3%
|
|
| 20 | 28 |
8.8%
|
|
| 25 | 10 |
3.1%
|
|
| 30 | 8 |
2.5%
|
|
| 40 | 1 |
0.3%
|
|
| 45 | 1 |
0.3%
|
|
| 48 | 1 |
0.3%
|
|
| 50 | 2 |
0.6%
|
|
| 70 | 1 |
0.3%
|
|
| 100 | 2 |
0.6%
|