| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 416 |
69.2%
|
| -7 | Does not apply (spontaneous) | 118 |
19.6%
|
| 0 | 24 |
4%
|
|
| 7 | 1 |
0.2%
|
|
| 20 | 2 |
0.3%
|
|
| 30 | 1 |
0.2%
|
|
| 35 | 1 |
0.2%
|
|
| 40 | 2 |
0.3%
|
|
| 50 | 3 |
0.5%
|
|
| 60 | 2 |
0.3%
|
|
| 80 | 5 |
0.8%
|
|
| 90 | 1 |
0.2%
|
|
| 100 | 25 |
4.2%
|