| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 7 |
4.5%
|
| 0 | No time was spent | 48 |
30.6%
|
| 1 | 16 |
10.2%
|
|
| 2 | 29 |
18.5%
|
|
| 3 | 13 |
8.3%
|
|
| 5 | 12 |
7.6%
|
|
| 6 | 1 |
0.6%
|
|
| 10 | 13 |
8.3%
|
|
| 11 | 1 |
0.6%
|
|
| 14 | 1 |
0.6%
|
|
| 15 | 2 |
1.3%
|
|
| 20 | 2 |
1.3%
|
|
| 22 | 1 |
0.6%
|
|
| 25 | 2 |
1.3%
|
|
| 29 | 1 |
0.6%
|
|
| 30 | 4 |
2.5%
|
|
| 40 | 1 |
0.6%
|
|
| 45 | 2 |
1.3%
|
|
| 72 | 1 |
0.6%
|