| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 13 |
100%
|
| 1 | One hour or less | 0 | |
| 2 | 0 | ||
| 3 | 0 | ||
| 4 | 0 | ||
| 5 | 0 | ||
| 6 | 0 | ||
| 7 | 0 | ||
| 8 | 0 | ||
| 9 | 0 | ||
| 10 | 0 | ||
| 12 | 0 | ||
| 15 | 0 | ||
| 16 | 0 | ||
| 18 | 0 | ||
| 19 | 0 | ||
| 20 | 0 | ||
| 24 | 0 | ||
| 30 | 0 | ||
| 40 | 0 | ||
| 48 | 0 | ||
| 60 | 0 | ||
| 80 | 0 | ||
| 100 | 0 | ||
| 200 | 0 |