| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 50 |
12.4%
|
| 1 | One hour or less | 5 |
1.2%
|
| 2 | 1 |
0.2%
|
|
| 3 | 1 |
0.2%
|
|
| 12 | 1 |
0.2%
|
|
| 15 | 1 |
0.2%
|
|
| 20 | 3 |
0.7%
|
|
| 24 | 1 |
0.2%
|
|
| 25 | 2 |
0.5%
|
|
| 30 | 14 |
3.5%
|
|
| 35 | 2 |
0.5%
|
|
| 36 | 3 |
0.7%
|
|
| 40 | 10 |
2.5%
|
|
| 45 | 1 |
0.2%
|
|
| 50 | 8 |
2%
|
|
| 52 | 1 |
0.2%
|
|
| 60 | 3 |
0.7%
|
|
| 66 | 1 |
0.2%
|
|
| 70 | 1 |
0.2%
|
|
| 76 | 1 |
0.2%
|
|
| 80 | 3 |
0.7%
|
|
| 90 | 1 |
0.2%
|
|
| 96 | 4 |
1%
|
|
| 100 | 18 |
4.5%
|
|
| 120 | 24 |
6%
|
|
| 130 | 1 |
0.2%
|
|
| 140 | 1 |
0.2%
|
|
| 144 | 1 |
0.2%
|
|
| 150 | 14 |
3.5%
|
|
| 160 | 5 |
1.2%
|
|
| 164 | 1 |
0.2%
|
|
| 170 | 2 |
0.5%
|
|
| 174 | 1 |
0.2%
|
|
| 176 | 1 |
0.2%
|
|
| 180 | 6 |
1.5%
|
|
| 190 | 1 |
0.2%
|
|
| 192 | 1 |
0.2%
|
|
| 200 | 15 |
3.7%
|
|
| 220 | 2 |
0.5%
|
|
| 240 | 7 |
1.7%
|
|
| 249 | 1 |
0.2%
|
|
| 250 | 11 |
2.7%
|
|
| 280 | 1 |
0.2%
|
|
| 288 | 2 |
0.5%
|
|
| 300 | 19 |
4.7%
|
|
| 320 | 1 |
0.2%
|
|
| 328 | 1 |
0.2%
|
|
| 336 | 1 |
0.2%
|
|
| 350 | 2 |
0.5%
|
|
| 360 | 4 |
1%
|
|
| 400 | 15 |
3.7%
|
|
| 440 | 2 |
0.5%
|
|
| 450 | 4 |
1%
|
|
| 470 | 1 |
0.2%
|
|
| 480 | 17 |
4.2%
|
|
| 490 | 1 |
0.2%
|
|
| 500 | 24 |
6%
|
|
| 520 | 1 |
0.2%
|
|
| 540 | 1 |
0.2%
|
|
| 550 | 1 |
0.2%
|
|
| 570 | 1 |
0.2%
|
|
| 600 | 8 |
2%
|
|
| 620 | 1 |
0.2%
|
|
| 700 | 4 |
1%
|
|
| 770 | 1 |
0.2%
|
|
| 800 | 4 |
1%
|
|
| 840 | 1 |
0.2%
|
|
| 860 | 1 |
0.2%
|
|
| 900 | 1 |
0.2%
|
|
| 960 | 3 |
0.7%
|
|
| 1000 | 10 |
2.5%
|
|
| 1020 | 1 |
0.2%
|
|
| 1040 | 1 |
0.2%
|
|
| 1080 | 2 |
0.5%
|
|
| 1152 | 1 |
0.2%
|
|
| 1200 | 1 |
0.2%
|
|
| 1400 | 1 |
0.2%
|
|
| 1450 | 1 |
0.2%
|
|
| 1500 | 1 |
0.2%
|
|
| 1800 | 1 |
0.2%
|
|
| 1920 | 1 |
0.2%
|
|
| 2000 | 11 |
2.7%
|
|
| 2016 | 1 |
0.2%
|
|
| 2088 | 1 |
0.2%
|
|
| 2100 | 1 |
0.2%
|
|
| 2160 | 2 |
0.5%
|
|
| 2200 | 1 |
0.2%
|
|
| 2400 | 1 |
0.2%
|
|
| 2500 | 2 |
0.5%
|
|
| 2880 | 1 |
0.2%
|
|
| 3000 | 2 |
0.5%
|
|
| 4000 | 1 |
0.2%
|
|
| 4176 | 1 |
0.2%
|
|
| 8000 | 1 |
0.2%
|
|
| 8760 | 1 |
0.2%
|