| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
0.2%
|
| 0 | 116 |
8.8%
|
|
| 5 | 15 |
1.1%
|
|
| 10 | 121 |
9.2%
|
|
| 15 | 62 |
4.7%
|
|
| 20 | 239 |
18.1%
|
|
| 23 | 1 |
0.1%
|
|
| 25 | 119 |
9%
|
|
| 27 | 2 |
0.2%
|
|
| 28 | 2 |
0.2%
|
|
| 30 | 295 |
22.3%
|
|
| 32 | 4 |
0.3%
|
|
| 33 | 6 |
0.5%
|
|
| 34 | 2 |
0.2%
|
|
| 35 | 136 |
10.3%
|
|
| 38 | 2 |
0.2%
|
|
| 40 | 159 |
12%
|
|
| 42 | 1 |
0.1%
|
|
| 45 | 15 |
1.1%
|
|
| 50 | 23 |
1.7%
|