| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 7 |
2.4%
|
| -4 | Too many to count | 219 |
76.6%
|
| 0 | 5 |
1.7%
|
|
| 1 | 4 |
1.4%
|
|
| 2 | 16 |
5.6%
|
|
| 3 | 9 |
3.1%
|
|
| 4 | 6 |
2.1%
|
|
| 5 | 7 |
2.4%
|
|
| 7 | 1 |
0.3%
|
|
| 8 | 1 |
0.3%
|
|
| 10 | 1 |
0.3%
|
|
| 12 | 1 |
0.3%
|
|
| 13 | 1 |
0.3%
|
|
| 15 | 3 |
1%
|
|
| 20 | 2 |
0.7%
|
|
| 30 | 1 |
0.3%
|
|
| 180 | 1 |
0.3%
|
|
| 200 | 1 |
0.3%
|
|
| Sysmiss | 225 |