| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 25 |
21.9%
|
| 1 | One hour or less | 3 |
2.6%
|
| 2 | 1 |
0.9%
|
|
| 3 | 1 |
0.9%
|
|
| 5 | 1 |
0.9%
|
|
| 12 | 1 |
0.9%
|
|
| 16 | 1 |
0.9%
|
|
| 24 | 4 |
3.5%
|
|
| 30 | 5 |
4.4%
|
|
| 36 | 1 |
0.9%
|
|
| 40 | 39 |
34.2%
|
|
| 45 | 1 |
0.9%
|
|
| 48 | 1 |
0.9%
|
|
| 50 | 7 |
6.1%
|
|
| 60 | 9 |
7.9%
|
|
| 72 | 1 |
0.9%
|
|
| 80 | 4 |
3.5%
|
|
| 100 | 3 |
2.6%
|
|
| 120 | 1 |
0.9%
|
|
| 144 | 1 |
0.9%
|
|
| 160 | 1 |
0.9%
|
|
| 200 | 2 |
1.8%
|
|
| 240 | 1 |
0.9%
|