| Value | Category | Cases | |
|---|---|---|---|
| -2 | Don't know | 1 |
0.5%
|
| 0 | 35 |
17.5%
|
|
| 1 | 24 |
12%
|
|
| 2 | 21 |
10.5%
|
|
| 3 | 11 |
5.5%
|
|
| 4 | 11 |
5.5%
|
|
| 5 | 12 |
6%
|
|
| 6 | 15 |
7.5%
|
|
| 7 | 6 |
3%
|
|
| 8 | 7 |
3.5%
|
|
| 9 | 7 |
3.5%
|
|
| 10 | 8 |
4%
|
|
| 11 | 5 |
2.5%
|
|
| 12 | 4 |
2%
|
|
| 13 | 5 |
2.5%
|
|
| 14 | 7 |
3.5%
|
|
| 15 | 4 |
2%
|
|
| 16 | 2 |
1%
|
|
| 17 | 1 |
0.5%
|
|
| 18 | 3 |
1.5%
|
|
| 20 | 3 |
1.5%
|
|
| 21 | 1 |
0.5%
|
|
| 22 | 3 |
1.5%
|
|
| 27 | 1 |
0.5%
|
|
| 28 | 1 |
0.5%
|
|
| 30 | 2 |
1%
|