| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 69 |
5.7%
|
| 0 | No time was spent | 321 |
26.4%
|
| 1 | 27 |
2.2%
|
|
| 2 | 29 |
2.4%
|
|
| 3 | 6 |
0.5%
|
|
| 4 | 4 |
0.3%
|
|
| 5 | 127 |
10.4%
|
|
| 6 | 1 |
0.1%
|
|
| 7 | 4 |
0.3%
|
|
| 8 | 3 |
0.2%
|
|
| 10 | 176 |
14.5%
|
|
| 12 | 1 |
0.1%
|
|
| 14 | 1 |
0.1%
|
|
| 15 | 52 |
4.3%
|
|
| 20 | 113 |
9.3%
|
|
| 22 | 1 |
0.1%
|
|
| 24 | 1 |
0.1%
|
|
| 25 | 19 |
1.6%
|
|
| 30 | 75 |
6.2%
|
|
| 33 | 4 |
0.3%
|
|
| 35 | 5 |
0.4%
|
|
| 40 | 74 |
6.1%
|
|
| 50 | 50 |
4.1%
|
|
| 60 | 16 |
1.3%
|
|
| 70 | 10 |
0.8%
|
|
| 80 | 18 |
1.5%
|
|
| 90 | 3 |
0.2%
|
|
| 100 | 6 |
0.5%
|