| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 102 |
16.9%
|
| 1 | One hour or less | 13 |
2.2%
|
| 2 | 1 |
0.2%
|
|
| 7 | 1 |
0.2%
|
|
| 8 | 1 |
0.2%
|
|
| 10 | 1 |
0.2%
|
|
| 12 | 1 |
0.2%
|
|
| 15 | 1 |
0.2%
|
|
| 20 | 1 |
0.2%
|
|
| 24 | 4 |
0.7%
|
|
| 25 | 1 |
0.2%
|
|
| 26 | 1 |
0.2%
|
|
| 30 | 52 |
8.6%
|
|
| 31 | 2 |
0.3%
|
|
| 32 | 16 |
2.7%
|
|
| 33 | 1 |
0.2%
|
|
| 34 | 2 |
0.3%
|
|
| 35 | 21 |
3.5%
|
|
| 36 | 38 |
6.3%
|
|
| 37 | 3 |
0.5%
|
|
| 38 | 37 |
6.1%
|
|
| 39 | 4 |
0.7%
|
|
| 40 | 42 |
7%
|
|
| 41 | 3 |
0.5%
|
|
| 42 | 47 |
7.8%
|
|
| 43 | 3 |
0.5%
|
|
| 44 | 2 |
0.3%
|
|
| 45 | 6 |
1%
|
|
| 46 | 30 |
5%
|
|
| 47 | 2 |
0.3%
|
|
| 48 | 86 |
14.3%
|
|
| 50 | 4 |
0.7%
|
|
| 51 | 1 |
0.2%
|
|
| 52 | 3 |
0.5%
|
|
| 53 | 1 |
0.2%
|
|
| 55 | 1 |
0.2%
|
|
| 56 | 2 |
0.3%
|
|
| 60 | 2 |
0.3%
|
|
| 62 | 1 |
0.2%
|
|
| 65 | 1 |
0.2%
|
|
| 72 | 39 |
6.5%
|
|
| 80 | 1 |
0.2%
|
|
| 96 | 18 |
3%
|
|
| 98 | 1 |
0.2%
|
|
| 360 | 1 |
0.2%
|
|
| 400 | 1 |
0.2%
|
|
| 600 | 1 |
0.2%
|