| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 71 |
45.2%
|
| 1 | One hour or less | 1 |
0.6%
|
| 2 | 1 |
0.6%
|
|
| 3 | 3 |
1.9%
|
|
| 4 | 2 |
1.3%
|
|
| 5 | 3 |
1.9%
|
|
| 8 | 1 |
0.6%
|
|
| 20 | 4 |
2.5%
|
|
| 24 | 2 |
1.3%
|
|
| 25 | 3 |
1.9%
|
|
| 30 | 7 |
4.5%
|
|
| 36 | 1 |
0.6%
|
|
| 40 | 5 |
3.2%
|
|
| 50 | 6 |
3.8%
|
|
| 52 | 1 |
0.6%
|
|
| 80 | 1 |
0.6%
|
|
| 96 | 3 |
1.9%
|
|
| 100 | 3 |
1.9%
|
|
| 120 | 4 |
2.5%
|
|
| 150 | 2 |
1.3%
|
|
| 160 | 1 |
0.6%
|
|
| 170 | 1 |
0.6%
|
|
| 180 | 1 |
0.6%
|
|
| 185 | 1 |
0.6%
|
|
| 190 | 1 |
0.6%
|
|
| 200 | 3 |
1.9%
|
|
| 240 | 1 |
0.6%
|
|
| 250 | 3 |
1.9%
|
|
| 280 | 1 |
0.6%
|
|
| 300 | 3 |
1.9%
|
|
| 320 | 2 |
1.3%
|
|
| 360 | 2 |
1.3%
|
|
| 384 | 1 |
0.6%
|
|
| 480 | 1 |
0.6%
|
|
| 512 | 1 |
0.6%
|
|
| 600 | 2 |
1.3%
|
|
| 720 | 1 |
0.6%
|
|
| 744 | 3 |
1.9%
|
|
| 745 | 1 |
0.6%
|
|
| 755 | 2 |
1.3%
|
|
| 1790 | 1 |
0.6%
|
|
| Sysmiss | 197 |