| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 33 |
3.3%
|
| -4 | Too many to count | 448 |
44.5%
|
| 0 | 40 |
4%
|
|
| 1 | 21 |
2.1%
|
|
| 2 | 62 |
6.2%
|
|
| 3 | 84 |
8.3%
|
|
| 4 | 56 |
5.6%
|
|
| 5 | 66 |
6.6%
|
|
| 6 | 30 |
3%
|
|
| 7 | 30 |
3%
|
|
| 8 | 15 |
1.5%
|
|
| 9 | 1 |
0.1%
|
|
| 10 | 60 |
6%
|
|
| 11 | 2 |
0.2%
|
|
| 12 | 6 |
0.6%
|
|
| 15 | 13 |
1.3%
|
|
| 20 | 14 |
1.4%
|
|
| 25 | 2 |
0.2%
|
|
| 27 | 1 |
0.1%
|
|
| 30 | 3 |
0.3%
|
|
| 35 | 1 |
0.1%
|
|
| 40 | 2 |
0.2%
|
|
| 50 | 6 |
0.6%
|
|
| 60 | 2 |
0.2%
|
|
| 100 | 3 |
0.3%
|
|
| 113 | 1 |
0.1%
|
|
| 280 | 1 |
0.1%
|
|
| 300 | 1 |
0.1%
|
|
| 1000 | 1 |
0.1%
|
|
| 1500 | 1 |
0.1%
|
|
| Sysmiss | 1 |