| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 21 |
8.1%
|
| 1 | One hour or less | 6 |
2.3%
|
| 10 | 2 |
0.8%
|
|
| 12 | 1 |
0.4%
|
|
| 20 | 2 |
0.8%
|
|
| 24 | 1 |
0.4%
|
|
| 35 | 1 |
0.4%
|
|
| 40 | 2 |
0.8%
|
|
| 48 | 2 |
0.8%
|
|
| 50 | 2 |
0.8%
|
|
| 60 | 4 |
1.5%
|
|
| 80 | 1 |
0.4%
|
|
| 84 | 1 |
0.4%
|
|
| 90 | 1 |
0.4%
|
|
| 96 | 4 |
1.5%
|
|
| 100 | 11 |
4.2%
|
|
| 120 | 10 |
3.9%
|
|
| 150 | 7 |
2.7%
|
|
| 160 | 3 |
1.2%
|
|
| 168 | 1 |
0.4%
|
|
| 180 | 3 |
1.2%
|
|
| 192 | 1 |
0.4%
|
|
| 200 | 26 |
10%
|
|
| 205 | 1 |
0.4%
|
|
| 216 | 1 |
0.4%
|
|
| 240 | 2 |
0.8%
|
|
| 250 | 5 |
1.9%
|
|
| 280 | 10 |
3.9%
|
|
| 286 | 1 |
0.4%
|
|
| 288 | 13 |
5%
|
|
| 295 | 2 |
0.8%
|
|
| 300 | 9 |
3.5%
|
|
| 320 | 1 |
0.4%
|
|
| 350 | 2 |
0.8%
|
|
| 360 | 4 |
1.5%
|
|
| 380 | 1 |
0.4%
|
|
| 400 | 10 |
3.9%
|
|
| 420 | 2 |
0.8%
|
|
| 450 | 1 |
0.4%
|
|
| 472 | 1 |
0.4%
|
|
| 480 | 4 |
1.5%
|
|
| 500 | 15 |
5.8%
|
|
| 520 | 1 |
0.4%
|
|
| 560 | 1 |
0.4%
|
|
| 600 | 6 |
2.3%
|
|
| 640 | 2 |
0.8%
|
|
| 650 | 2 |
0.8%
|
|
| 800 | 5 |
1.9%
|
|
| 816 | 2 |
0.8%
|
|
| 900 | 1 |
0.4%
|
|
| 960 | 4 |
1.5%
|
|
| 1000 | 11 |
4.2%
|
|
| 1200 | 3 |
1.2%
|
|
| 1300 | 1 |
0.4%
|
|
| 1500 | 4 |
1.5%
|
|
| 1600 | 1 |
0.4%
|
|
| 1800 | 1 |
0.4%
|
|
| 1850 | 1 |
0.4%
|
|
| 1920 | 3 |
1.2%
|
|
| 2000 | 5 |
1.9%
|
|
| 3000 | 2 |
0.8%
|
|
| 3500 | 1 |
0.4%
|
|
| 4000 | 1 |
0.4%
|
|
| 5000 | 1 |
0.4%
|
|
| 7068 | 1 |
0.4%
|
|
| 8000 | 1 |
0.4%
|