| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 21 |
14.5%
|
| 0 | 76 |
52.4%
|
|
| 1 | 1 |
0.7%
|
|
| 2 | 4 |
2.8%
|
|
| 3 | 3 |
2.1%
|
|
| 4 | 1 |
0.7%
|
|
| 5 | 6 |
4.1%
|
|
| 6 | 2 |
1.4%
|
|
| 7 | 4 |
2.8%
|
|
| 8 | 1 |
0.7%
|
|
| 10 | 2 |
1.4%
|
|
| 14 | 1 |
0.7%
|
|
| 15 | 1 |
0.7%
|
|
| 18 | 2 |
1.4%
|
|
| 20 | 3 |
2.1%
|
|
| 30 | 1 |
0.7%
|
|
| 40 | 1 |
0.7%
|
|
| 50 | 2 |
1.4%
|
|
| 58 | 1 |
0.7%
|
|
| 70 | 1 |
0.7%
|
|
| 90 | 1 |
0.7%
|
|
| 115 | 1 |
0.7%
|
|
| 120 | 1 |
0.7%
|
|
| 137 | 1 |
0.7%
|
|
| 153 | 1 |
0.7%
|
|
| 160 | 1 |
0.7%
|
|
| 180 | 1 |
0.7%
|
|
| 265 | 1 |
0.7%
|
|
| 300 | 1 |
0.7%
|
|
| 356 | 1 |
0.7%
|
|
| 2000 | 1 |
0.7%
|