| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 60 |
8.5%
|
| -4 | Too many to count | 458 |
64.7%
|
| 0 | 26 |
3.7%
|
|
| 1 | 9 |
1.3%
|
|
| 2 | 25 |
3.5%
|
|
| 3 | 27 |
3.8%
|
|
| 4 | 16 |
2.3%
|
|
| 5 | 27 |
3.8%
|
|
| 6 | 7 |
1%
|
|
| 7 | 2 |
0.3%
|
|
| 8 | 3 |
0.4%
|
|
| 10 | 24 |
3.4%
|
|
| 12 | 1 |
0.1%
|
|
| 13 | 1 |
0.1%
|
|
| 15 | 9 |
1.3%
|
|
| 17 | 1 |
0.1%
|
|
| 20 | 3 |
0.4%
|
|
| 50 | 1 |
0.1%
|
|
| 60 | 1 |
0.1%
|
|
| 69 | 1 |
0.1%
|
|
| 100 | 2 |
0.3%
|
|
| 200 | 1 |
0.1%
|
|
| 225 | 1 |
0.1%
|
|
| 300 | 2 |
0.3%
|
|
| Sysmiss | 2 |