| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 8 |
2.2%
|
| 1 | One hour or less | 3 |
0.8%
|
| 2 | 3 |
0.8%
|
|
| 3 | 2 |
0.5%
|
|
| 4 | 3 |
0.8%
|
|
| 6 | 2 |
0.5%
|
|
| 7 | 2 |
0.5%
|
|
| 8 | 12 |
3.3%
|
|
| 9 | 1 |
0.3%
|
|
| 10 | 4 |
1.1%
|
|
| 12 | 48 |
13.2%
|
|
| 14 | 1 |
0.3%
|
|
| 15 | 5 |
1.4%
|
|
| 16 | 11 |
3%
|
|
| 18 | 1 |
0.3%
|
|
| 20 | 6 |
1.6%
|
|
| 24 | 16 |
4.4%
|
|
| 25 | 1 |
0.3%
|
|
| 28 | 3 |
0.8%
|
|
| 30 | 9 |
2.5%
|
|
| 35 | 10 |
2.7%
|
|
| 36 | 12 |
3.3%
|
|
| 38 | 3 |
0.8%
|
|
| 40 | 18 |
4.9%
|
|
| 41 | 1 |
0.3%
|
|
| 42 | 4 |
1.1%
|
|
| 45 | 6 |
1.6%
|
|
| 48 | 23 |
6.3%
|
|
| 50 | 12 |
3.3%
|
|
| 52 | 2 |
0.5%
|
|
| 54 | 2 |
0.5%
|
|
| 55 | 1 |
0.3%
|
|
| 56 | 2 |
0.5%
|
|
| 58 | 1 |
0.3%
|
|
| 60 | 29 |
8%
|
|
| 62 | 1 |
0.3%
|
|
| 64 | 3 |
0.8%
|
|
| 65 | 3 |
0.8%
|
|
| 66 | 1 |
0.3%
|
|
| 67 | 1 |
0.3%
|
|
| 68 | 1 |
0.3%
|
|
| 72 | 11 |
3%
|
|
| 75 | 2 |
0.5%
|
|
| 80 | 3 |
0.8%
|
|
| 82 | 1 |
0.3%
|
|
| 84 | 2 |
0.5%
|
|
| 85 | 2 |
0.5%
|
|
| 90 | 3 |
0.8%
|
|
| 92 | 2 |
0.5%
|
|
| 96 | 18 |
4.9%
|
|
| 100 | 4 |
1.1%
|
|
| 108 | 2 |
0.5%
|
|
| 112 | 1 |
0.3%
|
|
| 116 | 1 |
0.3%
|
|
| 120 | 5 |
1.4%
|
|
| 130 | 1 |
0.3%
|
|
| 160 | 1 |
0.3%
|
|
| 170 | 1 |
0.3%
|
|
| 172 | 1 |
0.3%
|
|
| 180 | 1 |
0.3%
|
|
| 190 | 1 |
0.3%
|
|
| 192 | 4 |
1.1%
|
|
| 200 | 2 |
0.5%
|
|
| 240 | 2 |
0.5%
|
|
| 260 | 1 |
0.3%
|
|
| 270 | 1 |
0.3%
|
|
| 280 | 1 |
0.3%
|
|
| 288 | 2 |
0.5%
|
|
| 360 | 1 |
0.3%
|
|
| 480 | 2 |
0.5%
|
|
| 500 | 1 |
0.3%
|
|
| 576 | 1 |
0.3%
|
|
| 600 | 1 |
0.3%
|
|
| 720 | 1 |
0.3%
|
|
| 820 | 1 |
0.3%
|
|
| 1095 | 1 |
0.3%
|
|
| 1152 | 1 |
0.3%
|
|
| 1200 | 1 |
0.3%
|