| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 30 |
5.1%
|
| -4 | Too many to count | 236 |
39.9%
|
| 0 | 30 |
5.1%
|
|
| 1 | 22 |
3.7%
|
|
| 2 | 55 |
9.3%
|
|
| 3 | 44 |
7.4%
|
|
| 4 | 31 |
5.2%
|
|
| 5 | 45 |
7.6%
|
|
| 6 | 7 |
1.2%
|
|
| 7 | 6 |
1%
|
|
| 8 | 6 |
1%
|
|
| 10 | 34 |
5.8%
|
|
| 12 | 4 |
0.7%
|
|
| 15 | 6 |
1%
|
|
| 20 | 17 |
2.9%
|
|
| 25 | 2 |
0.3%
|
|
| 30 | 2 |
0.3%
|
|
| 40 | 2 |
0.3%
|
|
| 41 | 1 |
0.2%
|
|
| 50 | 3 |
0.5%
|
|
| 60 | 1 |
0.2%
|
|
| 70 | 2 |
0.3%
|
|
| 100 | 1 |
0.2%
|
|
| 162 | 1 |
0.2%
|
|
| 200 | 1 |
0.2%
|
|
| 300 | 1 |
0.2%
|
|
| 2000 | 1 |
0.2%
|
|
| Sysmiss | 1 |