| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
0.9%
|
| 0 | 164 |
50.9%
|
|
| 1 | 7 |
2.2%
|
|
| 2 | 13 |
4%
|
|
| 3 | 7 |
2.2%
|
|
| 4 | 3 |
0.9%
|
|
| 5 | 4 |
1.2%
|
|
| 6 | 1 |
0.3%
|
|
| 8 | 2 |
0.6%
|
|
| 10 | 14 |
4.3%
|
|
| 13 | 1 |
0.3%
|
|
| 15 | 8 |
2.5%
|
|
| 20 | 15 |
4.7%
|
|
| 25 | 15 |
4.7%
|
|
| 28 | 1 |
0.3%
|
|
| 30 | 22 |
6.8%
|
|
| 33 | 2 |
0.6%
|
|
| 35 | 6 |
1.9%
|
|
| 36 | 1 |
0.3%
|
|
| 40 | 5 |
1.6%
|
|
| 43 | 1 |
0.3%
|
|
| 45 | 4 |
1.2%
|
|
| 50 | 8 |
2.5%
|
|
| 70 | 4 |
1.2%
|
|
| 80 | 1 |
0.3%
|
|
| 100 | 10 |
3.1%
|
|
| Sysmiss | 250 |