| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 61 |
16.8%
|
| 1 | One hour or less | 2 |
0.5%
|
| 4 | 1 |
0.3%
|
|
| 6 | 1 |
0.3%
|
|
| 12 | 1 |
0.3%
|
|
| 24 | 3 |
0.8%
|
|
| 26 | 1 |
0.3%
|
|
| 30 | 4 |
1.1%
|
|
| 31 | 1 |
0.3%
|
|
| 32 | 4 |
1.1%
|
|
| 35 | 4 |
1.1%
|
|
| 36 | 5 |
1.4%
|
|
| 38 | 2 |
0.5%
|
|
| 40 | 2 |
0.5%
|
|
| 42 | 2 |
0.5%
|
|
| 45 | 3 |
0.8%
|
|
| 46 | 2 |
0.5%
|
|
| 47 | 1 |
0.3%
|
|
| 48 | 36 |
9.9%
|
|
| 50 | 4 |
1.1%
|
|
| 55 | 2 |
0.5%
|
|
| 56 | 1 |
0.3%
|
|
| 58 | 1 |
0.3%
|
|
| 60 | 8 |
2.2%
|
|
| 70 | 2 |
0.5%
|
|
| 72 | 85 |
23.4%
|
|
| 75 | 2 |
0.5%
|
|
| 80 | 7 |
1.9%
|
|
| 84 | 2 |
0.5%
|
|
| 86 | 3 |
0.8%
|
|
| 88 | 1 |
0.3%
|
|
| 90 | 9 |
2.5%
|
|
| 92 | 1 |
0.3%
|
|
| 93 | 1 |
0.3%
|
|
| 94 | 1 |
0.3%
|
|
| 96 | 27 |
7.4%
|
|
| 104 | 1 |
0.3%
|
|
| 120 | 23 |
6.3%
|
|
| 124 | 1 |
0.3%
|
|
| 125 | 1 |
0.3%
|
|
| 140 | 1 |
0.3%
|
|
| 142 | 2 |
0.5%
|
|
| 144 | 4 |
1.1%
|
|
| 145 | 1 |
0.3%
|
|
| 146 | 1 |
0.3%
|
|
| 147 | 1 |
0.3%
|
|
| 150 | 6 |
1.6%
|
|
| 158 | 1 |
0.3%
|
|
| 168 | 4 |
1.1%
|
|
| 172 | 1 |
0.3%
|
|
| 180 | 2 |
0.5%
|
|
| 192 | 1 |
0.3%
|
|
| 216 | 1 |
0.3%
|
|
| 250 | 2 |
0.5%
|
|
| 253 | 1 |
0.3%
|
|
| 270 | 1 |
0.3%
|
|
| 280 | 1 |
0.3%
|
|
| 288 | 3 |
0.8%
|
|
| 300 | 1 |
0.3%
|
|
| 336 | 1 |
0.3%
|
|
| 450 | 1 |
0.3%
|
|
| 576 | 4 |
1.1%
|
|
| 620 | 1 |
0.3%
|
|
| 696 | 1 |
0.3%
|
|
| 864 | 1 |
0.3%
|
|
| 984 | 1 |
0.3%
|