| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 29 |
9.6%
|
| 1 | One hour or less | 7 |
2.3%
|
| 2 | 3 |
1%
|
|
| 3 | 22 |
7.3%
|
|
| 4 | 19 |
6.3%
|
|
| 5 | 18 |
5.9%
|
|
| 6 | 11 |
3.6%
|
|
| 7 | 1 |
0.3%
|
|
| 8 | 17 |
5.6%
|
|
| 10 | 5 |
1.7%
|
|
| 12 | 3 |
1%
|
|
| 14 | 2 |
0.7%
|
|
| 15 | 3 |
1%
|
|
| 16 | 1 |
0.3%
|
|
| 20 | 8 |
2.6%
|
|
| 23 | 1 |
0.3%
|
|
| 24 | 11 |
3.6%
|
|
| 25 | 2 |
0.7%
|
|
| 26 | 1 |
0.3%
|
|
| 30 | 13 |
4.3%
|
|
| 32 | 1 |
0.3%
|
|
| 33 | 1 |
0.3%
|
|
| 35 | 6 |
2%
|
|
| 36 | 7 |
2.3%
|
|
| 38 | 1 |
0.3%
|
|
| 40 | 9 |
3%
|
|
| 45 | 2 |
0.7%
|
|
| 48 | 39 |
12.9%
|
|
| 49 | 1 |
0.3%
|
|
| 50 | 13 |
4.3%
|
|
| 60 | 7 |
2.3%
|
|
| 65 | 1 |
0.3%
|
|
| 68 | 1 |
0.3%
|
|
| 69 | 1 |
0.3%
|
|
| 70 | 1 |
0.3%
|
|
| 72 | 11 |
3.6%
|
|
| 75 | 2 |
0.7%
|
|
| 80 | 1 |
0.3%
|
|
| 89 | 1 |
0.3%
|
|
| 90 | 1 |
0.3%
|
|
| 94 | 1 |
0.3%
|
|
| 96 | 1 |
0.3%
|
|
| 100 | 2 |
0.7%
|
|
| 106 | 1 |
0.3%
|
|
| 115 | 1 |
0.3%
|
|
| 120 | 10 |
3.3%
|
|
| 125 | 3 |
1%
|
|
| Sysmiss | 319 |