| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 317 |
53.5%
|
| 1 | One hour or less | 2 |
0.3%
|
| 4 | 1 |
0.2%
|
|
| 10 | 2 |
0.3%
|
|
| 12 | 1 |
0.2%
|
|
| 14 | 1 |
0.2%
|
|
| 18 | 2 |
0.3%
|
|
| 20 | 1 |
0.2%
|
|
| 24 | 3 |
0.5%
|
|
| 25 | 2 |
0.3%
|
|
| 30 | 8 |
1.4%
|
|
| 32 | 3 |
0.5%
|
|
| 33 | 2 |
0.3%
|
|
| 35 | 3 |
0.5%
|
|
| 36 | 6 |
1%
|
|
| 40 | 8 |
1.4%
|
|
| 42 | 2 |
0.3%
|
|
| 44 | 2 |
0.3%
|
|
| 45 | 1 |
0.2%
|
|
| 48 | 12 |
2%
|
|
| 50 | 12 |
2%
|
|
| 54 | 1 |
0.2%
|
|
| 60 | 12 |
2%
|
|
| 70 | 2 |
0.3%
|
|
| 72 | 9 |
1.5%
|
|
| 75 | 3 |
0.5%
|
|
| 80 | 7 |
1.2%
|
|
| 84 | 1 |
0.2%
|
|
| 90 | 6 |
1%
|
|
| 96 | 10 |
1.7%
|
|
| 100 | 13 |
2.2%
|
|
| 105 | 1 |
0.2%
|
|
| 108 | 1 |
0.2%
|
|
| 112 | 1 |
0.2%
|
|
| 120 | 11 |
1.9%
|
|
| 135 | 1 |
0.2%
|
|
| 136 | 1 |
0.2%
|
|
| 140 | 1 |
0.2%
|
|
| 144 | 4 |
0.7%
|
|
| 150 | 5 |
0.8%
|
|
| 154 | 1 |
0.2%
|
|
| 160 | 1 |
0.2%
|
|
| 180 | 2 |
0.3%
|
|
| 182 | 1 |
0.2%
|
|
| 192 | 1 |
0.2%
|
|
| 200 | 19 |
3.2%
|
|
| 208 | 1 |
0.2%
|
|
| 216 | 1 |
0.2%
|
|
| 230 | 2 |
0.3%
|
|
| 240 | 6 |
1%
|
|
| 250 | 6 |
1%
|
|
| 256 | 1 |
0.2%
|
|
| 288 | 2 |
0.3%
|
|
| 300 | 4 |
0.7%
|
|
| 312 | 1 |
0.2%
|
|
| 350 | 2 |
0.3%
|
|
| 360 | 1 |
0.2%
|
|
| 380 | 1 |
0.2%
|
|
| 384 | 2 |
0.3%
|
|
| 400 | 10 |
1.7%
|
|
| 450 | 8 |
1.4%
|
|
| 480 | 6 |
1%
|
|
| 500 | 8 |
1.4%
|
|
| 504 | 1 |
0.2%
|
|
| 550 | 1 |
0.2%
|
|
| 576 | 3 |
0.5%
|
|
| 600 | 4 |
0.7%
|
|
| 700 | 2 |
0.3%
|
|
| 720 | 3 |
0.5%
|
|
| 750 | 2 |
0.3%
|
|
| 768 | 1 |
0.2%
|
|
| 850 | 1 |
0.2%
|
|
| 960 | 1 |
0.2%
|
|
| 1100 | 1 |
0.2%
|
|
| 1200 | 1 |
0.2%
|
|
| 1400 | 1 |
0.2%
|
|
| 1440 | 1 |
0.2%
|
|
| 2400 | 1 |
0.2%
|