| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 32 |
8.9%
|
| -4 | Too many to count | 211 |
58.6%
|
| 0 | 11 |
3.1%
|
|
| 1 | 6 |
1.7%
|
|
| 2 | 20 |
5.6%
|
|
| 3 | 12 |
3.3%
|
|
| 4 | 9 |
2.5%
|
|
| 5 | 14 |
3.9%
|
|
| 6 | 4 |
1.1%
|
|
| 7 | 6 |
1.7%
|
|
| 8 | 1 |
0.3%
|
|
| 10 | 14 |
3.9%
|
|
| 12 | 1 |
0.3%
|
|
| 15 | 7 |
1.9%
|
|
| 20 | 7 |
1.9%
|
|
| 30 | 2 |
0.6%
|
|
| 50 | 1 |
0.3%
|
|
| 60 | 1 |
0.3%
|
|
| 65 | 1 |
0.3%
|