| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 53 |
23%
|
| 1 | One hour or less | 4 |
1.7%
|
| 3 | 1 |
0.4%
|
|
| 5 | 1 |
0.4%
|
|
| 8 | 1 |
0.4%
|
|
| 10 | 5 |
2.2%
|
|
| 12 | 2 |
0.9%
|
|
| 14 | 1 |
0.4%
|
|
| 15 | 3 |
1.3%
|
|
| 20 | 1 |
0.4%
|
|
| 24 | 3 |
1.3%
|
|
| 25 | 3 |
1.3%
|
|
| 30 | 15 |
6.5%
|
|
| 34 | 1 |
0.4%
|
|
| 36 | 1 |
0.4%
|
|
| 40 | 7 |
3%
|
|
| 44 | 1 |
0.4%
|
|
| 45 | 3 |
1.3%
|
|
| 47 | 1 |
0.4%
|
|
| 48 | 1 |
0.4%
|
|
| 50 | 12 |
5.2%
|
|
| 56 | 1 |
0.4%
|
|
| 60 | 5 |
2.2%
|
|
| 70 | 1 |
0.4%
|
|
| 78 | 1 |
0.4%
|
|
| 80 | 3 |
1.3%
|
|
| 90 | 2 |
0.9%
|
|
| 100 | 9 |
3.9%
|
|
| 120 | 10 |
4.3%
|
|
| 125 | 1 |
0.4%
|
|
| 126 | 1 |
0.4%
|
|
| 130 | 2 |
0.9%
|
|
| 145 | 1 |
0.4%
|
|
| 150 | 5 |
2.2%
|
|
| 160 | 7 |
3%
|
|
| 168 | 1 |
0.4%
|
|
| 170 | 2 |
0.9%
|
|
| 192 | 1 |
0.4%
|
|
| 200 | 15 |
6.5%
|
|
| 240 | 7 |
3%
|
|
| 250 | 2 |
0.9%
|
|
| 260 | 1 |
0.4%
|
|
| 300 | 3 |
1.3%
|
|
| 320 | 3 |
1.3%
|
|
| 380 | 1 |
0.4%
|
|
| 384 | 1 |
0.4%
|
|
| 400 | 2 |
0.9%
|
|
| 424 | 1 |
0.4%
|
|
| 480 | 1 |
0.4%
|
|
| 500 | 1 |
0.4%
|
|
| 540 | 1 |
0.4%
|
|
| 600 | 1 |
0.4%
|
|
| 670 | 1 |
0.4%
|
|
| 720 | 1 |
0.4%
|
|
| 800 | 2 |
0.9%
|
|
| 870 | 1 |
0.4%
|
|
| 960 | 1 |
0.4%
|
|
| 1000 | 4 |
1.7%
|
|
| 1200 | 2 |
0.9%
|
|
| 1500 | 2 |
0.9%
|
|
| 1800 | 1 |
0.4%
|
|
| 2200 | 1 |
0.4%
|
|
| 2240 | 1 |
0.4%
|
|
| Sysmiss | 244 |