| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 61 |
8%
|
| -7 | Does not apply (spontaneous) | 361 |
47.5%
|
| 0 | 8 |
1.1%
|
|
| 10 | 3 |
0.4%
|
|
| 15 | 2 |
0.3%
|
|
| 20 | 6 |
0.8%
|
|
| 25 | 2 |
0.3%
|
|
| 30 | 20 |
2.6%
|
|
| 35 | 4 |
0.5%
|
|
| 40 | 2 |
0.3%
|
|
| 45 | 1 |
0.1%
|
|
| 50 | 9 |
1.2%
|
|
| 60 | 12 |
1.6%
|
|
| 65 | 3 |
0.4%
|
|
| 66 | 1 |
0.1%
|
|
| 70 | 16 |
2.1%
|
|
| 75 | 4 |
0.5%
|
|
| 80 | 22 |
2.9%
|
|
| 85 | 3 |
0.4%
|
|
| 90 | 4 |
0.5%
|
|
| 95 | 3 |
0.4%
|
|
| 100 | 213 |
28%
|