| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 9 |
1.5%
|
| -7 | Does not apply (spontaneous) | 0 |
0%
|
| 0 | 485 |
80.8%
|
|
| 2 | 1 |
0.2%
|
|
| 3 | 1 |
0.2%
|
|
| 4 | 1 |
0.2%
|
|
| 5 | 18 |
3%
|
|
| 10 | 26 |
4.3%
|
|
| 13 | 2 |
0.3%
|
|
| 15 | 10 |
1.7%
|
|
| 20 | 24 |
4%
|
|
| 30 | 14 |
2.3%
|
|
| 40 | 3 |
0.5%
|
|
| 50 | 3 |
0.5%
|
|
| 80 | 1 |
0.2%
|
|
| 100 | 2 |
0.3%
|