| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | 8 |
20.5%
|
|
| 1 | One minute or less | 1 |
2.6%
|
| 3 | 1 |
2.6%
|
|
| 4 | 1 |
2.6%
|
|
| 6 | 1 |
2.6%
|
|
| 10 | 1 |
2.6%
|
|
| 15 | 2 |
5.1%
|
|
| 20 | 2 |
5.1%
|
|
| 30 | 7 |
17.9%
|
|
| 40 | 3 |
7.7%
|
|
| 45 | 2 |
5.1%
|
|
| 50 | 1 |
2.6%
|
|
| 59 | 9 |
23.1%
|
|
| Sysmiss | 72 |