| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 135 |
10.2%
|
| -4 | Too many to count | 721 |
54.6%
|
| 0 | 5 |
0.4%
|
|
| 1 | 24 |
1.8%
|
|
| 2 | 80 |
6.1%
|
|
| 3 | 88 |
6.7%
|
|
| 4 | 42 |
3.2%
|
|
| 5 | 69 |
5.2%
|
|
| 6 | 21 |
1.6%
|
|
| 7 | 9 |
0.7%
|
|
| 8 | 12 |
0.9%
|
|
| 9 | 1 |
0.1%
|
|
| 10 | 49 |
3.7%
|
|
| 11 | 1 |
0.1%
|
|
| 12 | 7 |
0.5%
|
|
| 13 | 1 |
0.1%
|
|
| 14 | 1 |
0.1%
|
|
| 15 | 22 |
1.7%
|
|
| 18 | 1 |
0.1%
|
|
| 19 | 1 |
0.1%
|
|
| 20 | 16 |
1.2%
|
|
| 24 | 1 |
0.1%
|
|
| 25 | 1 |
0.1%
|
|
| 29 | 2 |
0.2%
|
|
| 30 | 2 |
0.2%
|
|
| 48 | 1 |
0.1%
|
|
| 50 | 1 |
0.1%
|
|
| 75 | 1 |
0.1%
|
|
| 100 | 2 |
0.2%
|
|
| 150 | 1 |
0.1%
|
|
| 620 | 1 |
0.1%
|
|
| 2021 | 1 |
0.1%
|
|
| Sysmiss | 3 |