| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 75 |
9.9%
|
| -4 | Too many to count | 391 |
51.7%
|
| 0 | 11 |
1.5%
|
|
| 1 | 14 |
1.9%
|
|
| 2 | 50 |
6.6%
|
|
| 3 | 40 |
5.3%
|
|
| 4 | 10 |
1.3%
|
|
| 5 | 39 |
5.2%
|
|
| 6 | 5 |
0.7%
|
|
| 7 | 3 |
0.4%
|
|
| 8 | 3 |
0.4%
|
|
| 10 | 70 |
9.3%
|
|
| 15 | 16 |
2.1%
|
|
| 20 | 19 |
2.5%
|
|
| 25 | 2 |
0.3%
|
|
| 30 | 4 |
0.5%
|
|
| 40 | 1 |
0.1%
|
|
| 50 | 2 |
0.3%
|
|
| 100 | 1 |
0.1%
|
|
| Sysmiss | 4 |