| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 776 |
26.3%
|
| 0 | No time was spent | 1851 |
62.6%
|
| 1 | 29 |
1%
|
|
| 2 | 34 |
1.2%
|
|
| 3 | 15 |
0.5%
|
|
| 4 | 3 |
0.1%
|
|
| 5 | 16 |
0.5%
|
|
| 7 | 18 |
0.6%
|
|
| 8 | 1 |
0%
|
|
| 10 | 36 |
1.2%
|
|
| 12 | 8 |
0.3%
|
|
| 14 | 3 |
0.1%
|
|
| 15 | 20 |
0.7%
|
|
| 16 | 5 |
0.2%
|
|
| 18 | 16 |
0.5%
|
|
| 20 | 28 |
0.9%
|
|
| 24 | 4 |
0.1%
|
|
| 25 | 3 |
0.1%
|
|
| 30 | 5 |
0.2%
|
|
| 35 | 1 |
0%
|
|
| 40 | 1 |
0%
|
|
| 45 | 2 |
0.1%
|
|
| 48 | 2 |
0.1%
|
|
| 50 | 7 |
0.2%
|
|
| 60 | 4 |
0.1%
|
|
| 70 | 1 |
0%
|
|
| 80 | 2 |
0.1%
|
|
| 90 | 1 |
0%
|
|
| 100 | 63 |
2.1%
|