| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 79 |
21.6%
|
| 1 | One hour or less | 6 |
1.6%
|
| 12 | 5 |
1.4%
|
|
| 15 | 2 |
0.5%
|
|
| 24 | 4 |
1.1%
|
|
| 26 | 2 |
0.5%
|
|
| 27 | 1 |
0.3%
|
|
| 28 | 1 |
0.3%
|
|
| 30 | 22 |
6%
|
|
| 31 | 1 |
0.3%
|
|
| 32 | 4 |
1.1%
|
|
| 34 | 6 |
1.6%
|
|
| 35 | 8 |
2.2%
|
|
| 36 | 12 |
3.3%
|
|
| 37 | 3 |
0.8%
|
|
| 38 | 1 |
0.3%
|
|
| 39 | 2 |
0.5%
|
|
| 40 | 9 |
2.5%
|
|
| 42 | 13 |
3.6%
|
|
| 43 | 1 |
0.3%
|
|
| 46 | 1 |
0.3%
|
|
| 48 | 115 |
31.5%
|
|
| 52 | 1 |
0.3%
|
|
| 60 | 1 |
0.3%
|
|
| 72 | 61 |
16.7%
|
|
| 96 | 3 |
0.8%
|
|
| 192 | 1 |
0.3%
|