| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 6 |
0.8%
|
| 0 | None | 184 |
25.9%
|
| 1 | 71 |
10%
|
|
| 2 | 80 |
11.3%
|
|
| 3 | 56 |
7.9%
|
|
| 4 | 18 |
2.5%
|
|
| 5 | 66 |
9.3%
|
|
| 6 | 14 |
2%
|
|
| 7 | 6 |
0.8%
|
|
| 8 | 19 |
2.7%
|
|
| 9 | 6 |
0.8%
|
|
| 10 | 73 |
10.3%
|
|
| 11 | 3 |
0.4%
|
|
| 12 | 12 |
1.7%
|
|
| 15 | 43 |
6.1%
|
|
| 17 | 1 |
0.1%
|
|
| 18 | 7 |
1%
|
|
| 19 | 1 |
0.1%
|
|
| 20 | 26 |
3.7%
|
|
| 22 | 1 |
0.1%
|
|
| 25 | 2 |
0.3%
|
|
| 30 | 4 |
0.6%
|
|
| 35 | 2 |
0.3%
|
|
| 40 | 1 |
0.1%
|
|
| 45 | 2 |
0.3%
|
|
| 50 | 1 |
0.1%
|
|
| 60 | 1 |
0.1%
|
|
| 70 | 2 |
0.3%
|
|
| 75 | 1 |
0.1%
|
|
| 100 | 1 |
0.1%
|
|
| Sysmiss | 315 |