| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 792 |
55.9%
|
| 1 | One hour or less | 130 |
9.2%
|
| 2 | 3 |
0.2%
|
|
| 3 | 5 |
0.4%
|
|
| 4 | 1 |
0.1%
|
|
| 5 | 6 |
0.4%
|
|
| 6 | 1 |
0.1%
|
|
| 7 | 1 |
0.1%
|
|
| 8 | 1 |
0.1%
|
|
| 10 | 7 |
0.5%
|
|
| 12 | 5 |
0.4%
|
|
| 13 | 1 |
0.1%
|
|
| 20 | 4 |
0.3%
|
|
| 24 | 5 |
0.4%
|
|
| 30 | 33 |
2.3%
|
|
| 32 | 3 |
0.2%
|
|
| 35 | 10 |
0.7%
|
|
| 36 | 5 |
0.4%
|
|
| 40 | 11 |
0.8%
|
|
| 45 | 2 |
0.1%
|
|
| 48 | 8 |
0.6%
|
|
| 50 | 18 |
1.3%
|
|
| 52 | 3 |
0.2%
|
|
| 56 | 1 |
0.1%
|
|
| 60 | 37 |
2.6%
|
|
| 68 | 1 |
0.1%
|
|
| 70 | 4 |
0.3%
|
|
| 72 | 24 |
1.7%
|
|
| 75 | 1 |
0.1%
|
|
| 80 | 17 |
1.2%
|
|
| 84 | 5 |
0.4%
|
|
| 85 | 1 |
0.1%
|
|
| 90 | 5 |
0.4%
|
|
| 96 | 30 |
2.1%
|
|
| 100 | 28 |
2%
|
|
| 108 | 6 |
0.4%
|
|
| 120 | 37 |
2.6%
|
|
| 140 | 1 |
0.1%
|
|
| 144 | 12 |
0.8%
|
|
| 150 | 14 |
1%
|
|
| 156 | 1 |
0.1%
|
|
| 170 | 3 |
0.2%
|
|
| 180 | 1 |
0.1%
|
|
| 190 | 2 |
0.1%
|
|
| 200 | 21 |
1.5%
|
|
| 216 | 2 |
0.1%
|
|
| 225 | 1 |
0.1%
|
|
| 240 | 5 |
0.4%
|
|
| 250 | 12 |
0.8%
|
|
| 260 | 2 |
0.1%
|
|
| 270 | 2 |
0.1%
|
|
| 280 | 1 |
0.1%
|
|
| 288 | 3 |
0.2%
|
|
| 300 | 23 |
1.6%
|
|
| 335 | 1 |
0.1%
|
|
| 350 | 3 |
0.2%
|
|
| 360 | 3 |
0.2%
|
|
| 365 | 1 |
0.1%
|
|
| 385 | 1 |
0.1%
|
|
| 400 | 6 |
0.4%
|
|
| 450 | 1 |
0.1%
|
|
| 480 | 2 |
0.1%
|
|
| 500 | 9 |
0.6%
|
|
| 600 | 2 |
0.1%
|
|
| 648 | 1 |
0.1%
|
|
| 700 | 1 |
0.1%
|
|
| 720 | 4 |
0.3%
|
|
| 800 | 2 |
0.1%
|
|
| 900 | 1 |
0.1%
|
|
| 960 | 2 |
0.1%
|
|
| 1000 | 4 |
0.3%
|
|
| 1080 | 1 |
0.1%
|
|
| 1092 | 1 |
0.1%
|
|
| 1200 | 3 |
0.2%
|
|
| 1300 | 1 |
0.1%
|
|
| 1400 | 1 |
0.1%
|
|
| 1440 | 1 |
0.1%
|
|
| 1500 | 1 |
0.1%
|
|
| 2000 | 1 |
0.1%
|
|
| 2080 | 1 |
0.1%
|
|
| 4160 | 1 |
0.1%
|
|
| 4320 | 1 |
0.1%
|
|
| 8000 | 1 |
0.1%
|