| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 23 |
7.4%
|
| 0 | No time was spent | 79 |
25.4%
|
| 1 | 8 |
2.6%
|
|
| 2 | 17 |
5.5%
|
|
| 3 | 9 |
2.9%
|
|
| 4 | 4 |
1.3%
|
|
| 5 | 17 |
5.5%
|
|
| 6 | 4 |
1.3%
|
|
| 8 | 4 |
1.3%
|
|
| 10 | 30 |
9.6%
|
|
| 12 | 1 |
0.3%
|
|
| 13 | 1 |
0.3%
|
|
| 15 | 13 |
4.2%
|
|
| 16 | 3 |
1%
|
|
| 18 | 2 |
0.6%
|
|
| 20 | 30 |
9.6%
|
|
| 21 | 1 |
0.3%
|
|
| 24 | 2 |
0.6%
|
|
| 25 | 8 |
2.6%
|
|
| 30 | 27 |
8.7%
|
|
| 35 | 4 |
1.3%
|
|
| 40 | 7 |
2.3%
|
|
| 45 | 1 |
0.3%
|
|
| 50 | 11 |
3.5%
|
|
| 52 | 1 |
0.3%
|
|
| 80 | 1 |
0.3%
|
|
| 100 | 3 |
1%
|