| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
2.9%
|
| 0 | 10 |
28.6%
|
|
| 1 | One minute or less | 7 |
20%
|
| 3 | 1 |
2.9%
|
|
| 5 | 1 |
2.9%
|
|
| 10 | 3 |
8.6%
|
|
| 15 | 1 |
2.9%
|
|
| 20 | 2 |
5.7%
|
|
| 30 | 4 |
11.4%
|
|
| 35 | 2 |
5.7%
|
|
| 45 | 1 |
2.9%
|
|
| 50 | 1 |
2.9%
|
|
| 55 | 1 |
2.9%
|
|
| Sysmiss | 79 |