| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 46 |
9.9%
|
| 0 | Less than 1 hour | 54 |
11.6%
|
| 1 | 29 |
6.2%
|
|
| 2 | 56 |
12%
|
|
| 3 | 45 |
9.6%
|
|
| 4 | 25 |
5.4%
|
|
| 5 | 32 |
6.9%
|
|
| 6 | 16 |
3.4%
|
|
| 7 | 2 |
0.4%
|
|
| 8 | 25 |
5.4%
|
|
| 9 | 2 |
0.4%
|
|
| 10 | 27 |
5.8%
|
|
| 12 | 15 |
3.2%
|
|
| 14 | 1 |
0.2%
|
|
| 15 | 9 |
1.9%
|
|
| 16 | 5 |
1.1%
|
|
| 20 | 10 |
2.1%
|
|
| 24 | 16 |
3.4%
|
|
| 25 | 1 |
0.2%
|
|
| 30 | 2 |
0.4%
|
|
| 32 | 1 |
0.2%
|
|
| 35 | 1 |
0.2%
|
|
| 36 | 1 |
0.2%
|
|
| 40 | 2 |
0.4%
|
|
| 48 | 11 |
2.4%
|
|
| 50 | 2 |
0.4%
|
|
| 56 | 1 |
0.2%
|
|
| 60 | 5 |
1.1%
|
|
| 62 | 1 |
0.2%
|
|
| 70 | 1 |
0.2%
|
|
| 72 | 3 |
0.6%
|
|
| 74 | 1 |
0.2%
|
|
| 75 | 1 |
0.2%
|
|
| 80 | 2 |
0.4%
|
|
| 90 | 2 |
0.4%
|
|
| 100 | 2 |
0.4%
|
|
| 120 | 2 |
0.4%
|
|
| 150 | 3 |
0.6%
|
|
| 240 | 1 |
0.2%
|
|
| 280 | 1 |
0.2%
|
|
| 320 | 1 |
0.2%
|
|
| 360 | 1 |
0.2%
|
|
| 392 | 1 |
0.2%
|
|
| 480 | 1 |
0.2%
|
|
| 720 | 1 |
0.2%
|
|
| Sysmiss | 520 |