| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 39 |
44.8%
|
| 1 | One hour or less | 0 |
0%
|
| 16 | 1 |
1.1%
|
|
| 20 | 2 |
2.3%
|
|
| 22 | 1 |
1.1%
|
|
| 25 | 1 |
1.1%
|
|
| 30 | 7 |
8%
|
|
| 35 | 2 |
2.3%
|
|
| 36 | 2 |
2.3%
|
|
| 40 | 14 |
16.1%
|
|
| 45 | 1 |
1.1%
|
|
| 46 | 1 |
1.1%
|
|
| 50 | 4 |
4.6%
|
|
| 55 | 1 |
1.1%
|
|
| 58 | 1 |
1.1%
|
|
| 60 | 4 |
4.6%
|
|
| 75 | 1 |
1.1%
|
|
| 80 | 1 |
1.1%
|
|
| 96 | 1 |
1.1%
|
|
| 150 | 1 |
1.1%
|
|
| 200 | 1 |
1.1%
|
|
| 340 | 1 |
1.1%
|
|
| Sysmiss | 66 |