| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 27 |
1%
|
| 0 | No time was spent | 545 |
20.7%
|
| 1 | 102 |
3.9%
|
|
| 2 | 91 |
3.5%
|
|
| 3 | 30 |
1.1%
|
|
| 4 | 17 |
0.6%
|
|
| 5 | 306 |
11.6%
|
|
| 6 | 14 |
0.5%
|
|
| 7 | 10 |
0.4%
|
|
| 8 | 17 |
0.6%
|
|
| 9 | 3 |
0.1%
|
|
| 10 | 436 |
16.5%
|
|
| 12 | 4 |
0.2%
|
|
| 13 | 4 |
0.2%
|
|
| 14 | 5 |
0.2%
|
|
| 15 | 135 |
5.1%
|
|
| 16 | 2 |
0.1%
|
|
| 17 | 6 |
0.2%
|
|
| 18 | 3 |
0.1%
|
|
| 20 | 376 |
14.3%
|
|
| 21 | 1 |
0%
|
|
| 23 | 1 |
0%
|
|
| 24 | 5 |
0.2%
|
|
| 25 | 61 |
2.3%
|
|
| 28 | 4 |
0.2%
|
|
| 30 | 180 |
6.8%
|
|
| 33 | 2 |
0.1%
|
|
| 35 | 14 |
0.5%
|
|
| 40 | 75 |
2.8%
|
|
| 45 | 4 |
0.2%
|
|
| 48 | 1 |
0%
|
|
| 50 | 75 |
2.8%
|
|
| 60 | 21 |
0.8%
|
|
| 70 | 19 |
0.7%
|
|
| 78 | 1 |
0%
|
|
| 80 | 19 |
0.7%
|
|
| 85 | 1 |
0%
|
|
| 90 | 3 |
0.1%
|
|
| 100 | 15 |
0.6%
|