| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.5%
|
| 0 | 48 |
23.4%
|
|
| 1 | 36 |
17.6%
|
|
| 2 | 39 |
19%
|
|
| 3 | 18 |
8.8%
|
|
| 4 | 5 |
2.4%
|
|
| 5 | 10 |
4.9%
|
|
| 6 | 3 |
1.5%
|
|
| 7 | 8 |
3.9%
|
|
| 8 | 3 |
1.5%
|
|
| 9 | 1 |
0.5%
|
|
| 10 | 9 |
4.4%
|
|
| 11 | 2 |
1%
|
|
| 12 | 1 |
0.5%
|
|
| 13 | 1 |
0.5%
|
|
| 14 | 2 |
1%
|
|
| 15 | 4 |
2%
|
|
| 17 | 1 |
0.5%
|
|
| 19 | 1 |
0.5%
|
|
| 20 | 1 |
0.5%
|
|
| 21 | 1 |
0.5%
|
|
| 25 | 1 |
0.5%
|
|
| 30 | 1 |
0.5%
|
|
| 32 | 1 |
0.5%
|
|
| 35 | 1 |
0.5%
|
|
| 39 | 1 |
0.5%
|
|
| 50 | 1 |
0.5%
|
|
| 55 | 1 |
0.5%
|
|
| 100 | 1 |
0.5%
|
|
| 110 | 1 |
0.5%
|
|
| 400 | 1 |
0.5%
|
|
| Sysmiss | 398 |