| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
0.7%
|
| 0 | None | 177 |
58.2%
|
| 1 | 12 |
3.9%
|
|
| 2 | 12 |
3.9%
|
|
| 3 | 3 |
1%
|
|
| 4 | 3 |
1%
|
|
| 5 | 18 |
5.9%
|
|
| 6 | 2 |
0.7%
|
|
| 7 | 2 |
0.7%
|
|
| 8 | 2 |
0.7%
|
|
| 10 | 25 |
8.2%
|
|
| 15 | 3 |
1%
|
|
| 20 | 19 |
6.3%
|
|
| 25 | 1 |
0.3%
|
|
| 30 | 3 |
1%
|
|
| 35 | 1 |
0.3%
|
|
| 40 | 5 |
1.6%
|
|
| 45 | 1 |
0.3%
|
|
| 50 | 3 |
1%
|
|
| 70 | 1 |
0.3%
|
|
| 75 | 2 |
0.7%
|
|
| 80 | 1 |
0.3%
|
|
| 90 | 1 |
0.3%
|
|
| 100 | 5 |
1.6%
|
|
| Sysmiss | 720 |