| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | 21 |
28.4%
|
|
| 1 | One minute or less | 9 |
12.2%
|
| 2 | 3 |
4.1%
|
|
| 3 | 1 |
1.4%
|
|
| 4 | 1 |
1.4%
|
|
| 5 | 6 |
8.1%
|
|
| 10 | 9 |
12.2%
|
|
| 15 | 5 |
6.8%
|
|
| 20 | 2 |
2.7%
|
|
| 30 | 11 |
14.9%
|
|
| 40 | 2 |
2.7%
|
|
| 45 | 2 |
2.7%
|
|
| 59 | 2 |
2.7%
|
|
| Sysmiss | 933 |