| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 145 |
23.7%
|
| 1 | One hour or less | 33 |
5.4%
|
| 2 | 4 |
0.7%
|
|
| 3 | 8 |
1.3%
|
|
| 4 | 7 |
1.1%
|
|
| 5 | 4 |
0.7%
|
|
| 6 | 1 |
0.2%
|
|
| 7 | 1 |
0.2%
|
|
| 8 | 8 |
1.3%
|
|
| 10 | 1 |
0.2%
|
|
| 12 | 4 |
0.7%
|
|
| 16 | 12 |
2%
|
|
| 20 | 4 |
0.7%
|
|
| 24 | 12 |
2%
|
|
| 26 | 1 |
0.2%
|
|
| 30 | 10 |
1.6%
|
|
| 32 | 5 |
0.8%
|
|
| 36 | 1 |
0.2%
|
|
| 40 | 17 |
2.8%
|
|
| 48 | 12 |
2%
|
|
| 50 | 8 |
1.3%
|
|
| 52 | 1 |
0.2%
|
|
| 56 | 21 |
3.4%
|
|
| 60 | 5 |
0.8%
|
|
| 64 | 4 |
0.7%
|
|
| 70 | 1 |
0.2%
|
|
| 72 | 2 |
0.3%
|
|
| 78 | 1 |
0.2%
|
|
| 80 | 14 |
2.3%
|
|
| 96 | 17 |
2.8%
|
|
| 100 | 8 |
1.3%
|
|
| 104 | 10 |
1.6%
|
|
| 112 | 6 |
1%
|
|
| 120 | 16 |
2.6%
|
|
| 128 | 1 |
0.2%
|
|
| 144 | 7 |
1.1%
|
|
| 152 | 1 |
0.2%
|
|
| 156 | 6 |
1%
|
|
| 160 | 8 |
1.3%
|
|
| 176 | 4 |
0.7%
|
|
| 180 | 3 |
0.5%
|
|
| 184 | 1 |
0.2%
|
|
| 192 | 6 |
1%
|
|
| 196 | 1 |
0.2%
|
|
| 200 | 2 |
0.3%
|
|
| 208 | 19 |
3.1%
|
|
| 216 | 1 |
0.2%
|
|
| 240 | 20 |
3.3%
|
|
| 244 | 1 |
0.2%
|
|
| 250 | 2 |
0.3%
|
|
| 260 | 2 |
0.3%
|
|
| 264 | 2 |
0.3%
|
|
| 288 | 10 |
1.6%
|
|
| 300 | 1 |
0.2%
|
|
| 312 | 1 |
0.2%
|
|
| 320 | 3 |
0.5%
|
|
| 330 | 1 |
0.2%
|
|
| 336 | 2 |
0.3%
|
|
| 360 | 4 |
0.7%
|
|
| 384 | 2 |
0.3%
|
|
| 392 | 3 |
0.5%
|
|
| 400 | 2 |
0.3%
|
|
| 414 | 1 |
0.2%
|
|
| 416 | 13 |
2.1%
|
|
| 432 | 2 |
0.3%
|
|
| 440 | 1 |
0.2%
|
|
| 450 | 2 |
0.3%
|
|
| 456 | 1 |
0.2%
|
|
| 480 | 13 |
2.1%
|
|
| 492 | 1 |
0.2%
|
|
| 500 | 3 |
0.5%
|
|
| 520 | 3 |
0.5%
|
|
| 528 | 1 |
0.2%
|
|
| 540 | 2 |
0.3%
|
|
| 560 | 1 |
0.2%
|
|
| 576 | 2 |
0.3%
|
|
| 580 | 1 |
0.2%
|
|
| 600 | 1 |
0.2%
|
|
| 624 | 1 |
0.2%
|
|
| 672 | 13 |
2.1%
|
|
| 680 | 1 |
0.2%
|
|
| 693 | 1 |
0.2%
|
|
| 720 | 3 |
0.5%
|
|
| 900 | 1 |
0.2%
|
|
| 960 | 8 |
1.3%
|
|
| 1000 | 2 |
0.3%
|
|
| 1040 | 1 |
0.2%
|
|
| 1056 | 2 |
0.3%
|
|
| 1200 | 1 |
0.2%
|
|
| 1248 | 2 |
0.3%
|
|
| 1373 | 1 |
0.2%
|
|
| 1400 | 1 |
0.2%
|
|
| 1920 | 1 |
0.2%
|
|
| 2080 | 2 |
0.3%
|
|
| 2400 | 1 |
0.2%
|
|
| 3000 | 1 |
0.2%
|
|
| 6248 | 1 |
0.2%
|