| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 18 |
12.1%
|
| 5 | 4 |
2.7%
|
|
| 6 | 15 |
10.1%
|
|
| 7 | 16 |
10.7%
|
|
| 8 | 8 |
5.4%
|
|
| 9 | 2 |
1.3%
|
|
| 10 | 13 |
8.7%
|
|
| 11 | 6 |
4%
|
|
| 12 | 7 |
4.7%
|
|
| 14 | 3 |
2%
|
|
| 15 | 6 |
4%
|
|
| 16 | 4 |
2.7%
|
|
| 17 | 3 |
2%
|
|
| 18 | 4 |
2.7%
|
|
| 19 | 4 |
2.7%
|
|
| 20 | 3 |
2%
|
|
| 21 | 2 |
1.3%
|
|
| 22 | 1 |
0.7%
|
|
| 23 | 1 |
0.7%
|
|
| 24 | 1 |
0.7%
|
|
| 26 | 1 |
0.7%
|
|
| 27 | 1 |
0.7%
|
|
| 30 | 1 |
0.7%
|
|
| 31 | 2 |
1.3%
|
|
| 32 | 3 |
2%
|
|
| 36 | 1 |
0.7%
|
|
| 38 | 2 |
1.3%
|
|
| 39 | 1 |
0.7%
|
|
| 40 | 1 |
0.7%
|
|
| 42 | 1 |
0.7%
|
|
| 48 | 1 |
0.7%
|
|
| 50 | 1 |
0.7%
|
|
| 70 | 1 |
0.7%
|
|
| 75 | 2 |
1.3%
|
|
| 78 | 1 |
0.7%
|
|
| 100 | 1 |
0.7%
|
|
| 101 | 2 |
1.3%
|
|
| 105 | 1 |
0.7%
|
|
| 130 | 1 |
0.7%
|
|
| 140 | 1 |
0.7%
|
|
| 152 | 1 |
0.7%
|
|
| 160 | 1 |
0.7%
|