| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 119 |
11.9%
|
| 0 | No time was spent | 150 |
15%
|
| 1 | 248 |
24.8%
|
|
| 2 | 76 |
7.6%
|
|
| 3 | 34 |
3.4%
|
|
| 4 | 26 |
2.6%
|
|
| 5 | 85 |
8.5%
|
|
| 6 | 24 |
2.4%
|
|
| 7 | 15 |
1.5%
|
|
| 8 | 12 |
1.2%
|
|
| 9 | 1 |
0.1%
|
|
| 10 | 36 |
3.6%
|
|
| 12 | 1 |
0.1%
|
|
| 15 | 8 |
0.8%
|
|
| 20 | 16 |
1.6%
|
|
| 25 | 10 |
1%
|
|
| 30 | 5 |
0.5%
|
|
| 40 | 2 |
0.2%
|
|
| 48 | 1 |
0.1%
|
|
| 50 | 37 |
3.7%
|
|
| 55 | 1 |
0.1%
|
|
| 60 | 3 |
0.3%
|
|
| 72 | 1 |
0.1%
|
|
| 80 | 4 |
0.4%
|
|
| 96 | 1 |
0.1%
|
|
| 98 | 1 |
0.1%
|
|
| 100 | 81 |
8.1%
|