| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 48 |
19.7%
|
| 1 | One hour or less | 11 |
4.5%
|
| 2 | 1 |
0.4%
|
|
| 3 | 5 |
2%
|
|
| 4 | 6 |
2.5%
|
|
| 5 | 10 |
4.1%
|
|
| 6 | 5 |
2%
|
|
| 8 | 4 |
1.6%
|
|
| 10 | 16 |
6.6%
|
|
| 12 | 4 |
1.6%
|
|
| 14 | 1 |
0.4%
|
|
| 15 | 5 |
2%
|
|
| 16 | 7 |
2.9%
|
|
| 20 | 26 |
10.7%
|
|
| 23 | 1 |
0.4%
|
|
| 24 | 8 |
3.3%
|
|
| 25 | 3 |
1.2%
|
|
| 26 | 1 |
0.4%
|
|
| 28 | 2 |
0.8%
|
|
| 30 | 20 |
8.2%
|
|
| 32 | 2 |
0.8%
|
|
| 35 | 1 |
0.4%
|
|
| 36 | 1 |
0.4%
|
|
| 40 | 19 |
7.8%
|
|
| 42 | 1 |
0.4%
|
|
| 48 | 3 |
1.2%
|
|
| 50 | 3 |
1.2%
|
|
| 54 | 1 |
0.4%
|
|
| 60 | 3 |
1.2%
|
|
| 70 | 1 |
0.4%
|
|
| 80 | 3 |
1.2%
|
|
| 90 | 2 |
0.8%
|
|
| 98 | 1 |
0.4%
|
|
| 100 | 4 |
1.6%
|
|
| 120 | 7 |
2.9%
|
|
| 125 | 2 |
0.8%
|
|
| 150 | 1 |
0.4%
|
|
| 160 | 1 |
0.4%
|
|
| 175 | 1 |
0.4%
|
|
| 200 | 1 |
0.4%
|
|
| 320 | 1 |
0.4%
|
|
| 700 | 1 |
0.4%
|
|
| Sysmiss | 230 |