| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 22 |
45.8%
|
| 1 | One hour or less | 4 |
8.3%
|
| 2 | 2 |
4.2%
|
|
| 3 | 1 |
2.1%
|
|
| 4 | 1 |
2.1%
|
|
| 5 | 2 |
4.2%
|
|
| 7 | 1 |
2.1%
|
|
| 8 | 1 |
2.1%
|
|
| 10 | 2 |
4.2%
|
|
| 12 | 2 |
4.2%
|
|
| 20 | 1 |
2.1%
|
|
| 24 | 1 |
2.1%
|
|
| 30 | 1 |
2.1%
|
|
| 35 | 1 |
2.1%
|
|
| 48 | 2 |
4.2%
|
|
| 60 | 1 |
2.1%
|
|
| 96 | 1 |
2.1%
|
|
| 100 | 1 |
2.1%
|
|
| 200 | 1 |
2.1%
|
|
| Sysmiss | 63 |