| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
2.7%
|
| 0 | No time was spent | 65 |
58.6%
|
| 1 | 4 |
3.6%
|
|
| 2 | 12 |
10.8%
|
|
| 3 | 3 |
2.7%
|
|
| 4 | 2 |
1.8%
|
|
| 5 | 8 |
7.2%
|
|
| 6 | 1 |
0.9%
|
|
| 7 | 2 |
1.8%
|
|
| 8 | 1 |
0.9%
|
|
| 10 | 3 |
2.7%
|
|
| 15 | 2 |
1.8%
|
|
| 20 | 1 |
0.9%
|
|
| 40 | 2 |
1.8%
|
|
| 60 | 1 |
0.9%
|
|
| 100 | 1 |
0.9%
|