| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 22 |
3.7%
|
| 0 | No time was spent | 319 |
53.2%
|
| 1 | 10 |
1.7%
|
|
| 2 | 21 |
3.5%
|
|
| 3 | 13 |
2.2%
|
|
| 4 | 12 |
2%
|
|
| 5 | 32 |
5.3%
|
|
| 6 | 10 |
1.7%
|
|
| 7 | 4 |
0.7%
|
|
| 8 | 8 |
1.3%
|
|
| 9 | 2 |
0.3%
|
|
| 10 | 33 |
5.5%
|
|
| 12 | 3 |
0.5%
|
|
| 13 | 1 |
0.2%
|
|
| 14 | 2 |
0.3%
|
|
| 15 | 7 |
1.2%
|
|
| 17 | 1 |
0.2%
|
|
| 20 | 5 |
0.8%
|
|
| 25 | 1 |
0.2%
|
|
| 30 | 6 |
1%
|
|
| 40 | 2 |
0.3%
|
|
| 50 | 9 |
1.5%
|
|
| 60 | 5 |
0.8%
|
|
| 70 | 3 |
0.5%
|
|
| 77 | 1 |
0.2%
|
|
| 80 | 4 |
0.7%
|
|
| 90 | 1 |
0.2%
|
|
| 95 | 1 |
0.2%
|
|
| 98 | 1 |
0.2%
|
|
| 100 | 61 |
10.2%
|