| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 45 |
12.4%
|
| -4 | Too many to count | 155 |
42.8%
|
| 0 | 12 |
3.3%
|
|
| 1 | 10 |
2.8%
|
|
| 2 | 17 |
4.7%
|
|
| 3 | 21 |
5.8%
|
|
| 4 | 9 |
2.5%
|
|
| 5 | 27 |
7.5%
|
|
| 6 | 5 |
1.4%
|
|
| 7 | 3 |
0.8%
|
|
| 8 | 2 |
0.6%
|
|
| 10 | 32 |
8.8%
|
|
| 12 | 1 |
0.3%
|
|
| 15 | 8 |
2.2%
|
|
| 17 | 1 |
0.3%
|
|
| 20 | 6 |
1.7%
|
|
| 25 | 1 |
0.3%
|
|
| 30 | 1 |
0.3%
|
|
| 40 | 1 |
0.3%
|
|
| 50 | 2 |
0.6%
|
|
| 100 | 2 |
0.6%
|
|
| 120 | 1 |
0.3%
|