| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 21 |
25%
|
| 10 | 8 |
9.5%
|
|
| 20 | 11 |
13.1%
|
|
| 30 | 8 |
9.5%
|
|
| 40 | 13 |
15.5%
|
|
| 45 | 1 |
1.2%
|
|
| 50 | 1 |
1.2%
|
|
| 55 | 1 |
1.2%
|
|
| 60 | 3 |
3.6%
|
|
| 80 | 1 |
1.2%
|
|
| 100 | 1 |
1.2%
|
|
| 120 | 2 |
2.4%
|
|
| 150 | 1 |
1.2%
|
|
| 200 | 1 |
1.2%
|
|
| 220 | 1 |
1.2%
|
|
| 300 | 3 |
3.6%
|
|
| 320 | 1 |
1.2%
|
|
| 350 | 1 |
1.2%
|
|
| 360 | 1 |
1.2%
|
|
| 500 | 1 |
1.2%
|
|
| 600 | 1 |
1.2%
|
|
| 800 | 1 |
1.2%
|
|
| 2000 | 1 |
1.2%
|
|
| Sysmiss | 514 |