| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 125 |
35.1%
|
| 1 | One hour or less | 10 |
2.8%
|
| 2 | 1 |
0.3%
|
|
| 3 | 1 |
0.3%
|
|
| 4 | 3 |
0.8%
|
|
| 5 | 2 |
0.6%
|
|
| 8 | 4 |
1.1%
|
|
| 10 | 1 |
0.3%
|
|
| 12 | 2 |
0.6%
|
|
| 15 | 2 |
0.6%
|
|
| 16 | 1 |
0.3%
|
|
| 20 | 2 |
0.6%
|
|
| 24 | 3 |
0.8%
|
|
| 25 | 1 |
0.3%
|
|
| 30 | 15 |
4.2%
|
|
| 32 | 2 |
0.6%
|
|
| 35 | 7 |
2%
|
|
| 36 | 2 |
0.6%
|
|
| 40 | 10 |
2.8%
|
|
| 42 | 1 |
0.3%
|
|
| 44 | 2 |
0.6%
|
|
| 45 | 3 |
0.8%
|
|
| 46 | 1 |
0.3%
|
|
| 48 | 12 |
3.4%
|
|
| 50 | 7 |
2%
|
|
| 60 | 5 |
1.4%
|
|
| 63 | 1 |
0.3%
|
|
| 64 | 1 |
0.3%
|
|
| 68 | 1 |
0.3%
|
|
| 72 | 6 |
1.7%
|
|
| 75 | 1 |
0.3%
|
|
| 80 | 11 |
3.1%
|
|
| 82 | 1 |
0.3%
|
|
| 85 | 3 |
0.8%
|
|
| 88 | 1 |
0.3%
|
|
| 90 | 3 |
0.8%
|
|
| 96 | 5 |
1.4%
|
|
| 100 | 7 |
2%
|
|
| 110 | 1 |
0.3%
|
|
| 115 | 2 |
0.6%
|
|
| 120 | 9 |
2.5%
|
|
| 125 | 1 |
0.3%
|
|
| 130 | 2 |
0.6%
|
|
| 150 | 7 |
2%
|
|
| 160 | 2 |
0.6%
|
|
| 180 | 1 |
0.3%
|
|
| 192 | 3 |
0.8%
|
|
| 200 | 8 |
2.2%
|
|
| 209 | 1 |
0.3%
|
|
| 216 | 1 |
0.3%
|
|
| 222 | 1 |
0.3%
|
|
| 230 | 1 |
0.3%
|
|
| 240 | 5 |
1.4%
|
|
| 250 | 1 |
0.3%
|
|
| 264 | 1 |
0.3%
|
|
| 288 | 3 |
0.8%
|
|
| 300 | 7 |
2%
|
|
| 336 | 1 |
0.3%
|
|
| 360 | 2 |
0.6%
|
|
| 365 | 1 |
0.3%
|
|
| 384 | 2 |
0.6%
|
|
| 400 | 2 |
0.6%
|
|
| 450 | 1 |
0.3%
|
|
| 480 | 4 |
1.1%
|
|
| 500 | 1 |
0.3%
|
|
| 528 | 1 |
0.3%
|
|
| 564 | 1 |
0.3%
|
|
| 576 | 1 |
0.3%
|
|
| 672 | 1 |
0.3%
|
|
| 700 | 2 |
0.6%
|
|
| 720 | 1 |
0.3%
|
|
| 860 | 1 |
0.3%
|
|
| 864 | 1 |
0.3%
|
|
| 880 | 1 |
0.3%
|
|
| 960 | 1 |
0.3%
|
|
| 1050 | 1 |
0.3%
|
|
| 1152 | 1 |
0.3%
|
|
| 1200 | 1 |
0.3%
|
|
| 1475 | 1 |
0.3%
|
|
| 1500 | 1 |
0.3%
|
|
| 1936 | 1 |
0.3%
|
|
| 2112 | 1 |
0.3%
|
|
| 8600 | 1 |
0.3%
|
|
| Sysmiss | 373 |