| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 51 |
12.2%
|
| -4 | Too many to count | 215 |
51.6%
|
| 0 | 10 |
2.4%
|
|
| 1 | 16 |
3.8%
|
|
| 2 | 16 |
3.8%
|
|
| 3 | 13 |
3.1%
|
|
| 4 | 12 |
2.9%
|
|
| 5 | 30 |
7.2%
|
|
| 6 | 4 |
1%
|
|
| 7 | 1 |
0.2%
|
|
| 8 | 2 |
0.5%
|
|
| 9 | 1 |
0.2%
|
|
| 10 | 34 |
8.2%
|
|
| 15 | 2 |
0.5%
|
|
| 20 | 5 |
1.2%
|
|
| 30 | 2 |
0.5%
|
|
| 35 | 1 |
0.2%
|
|
| 50 | 2 |
0.5%
|
|
| Sysmiss | 85 |