| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | 8 |
6.6%
|
|
| 1 | 10 |
8.2%
|
|
| 2 | 10 |
8.2%
|
|
| 3 | 17 |
13.9%
|
|
| 4 | 15 |
12.3%
|
|
| 5 | 10 |
8.2%
|
|
| 6 | 5 |
4.1%
|
|
| 7 | 2 |
1.6%
|
|
| 8 | 8 |
6.6%
|
|
| 9 | 2 |
1.6%
|
|
| 10 | 5 |
4.1%
|
|
| 12 | 3 |
2.5%
|
|
| 14 | 2 |
1.6%
|
|
| 15 | 5 |
4.1%
|
|
| 20 | 5 |
4.1%
|
|
| 22 | 1 |
0.8%
|
|
| 23 | 1 |
0.8%
|
|
| 25 | 2 |
1.6%
|
|
| 28 | 1 |
0.8%
|
|
| 29 | 1 |
0.8%
|
|
| 35 | 1 |
0.8%
|
|
| 36 | 1 |
0.8%
|
|
| 40 | 1 |
0.8%
|
|
| 42 | 1 |
0.8%
|
|
| 50 | 2 |
1.6%
|
|
| 61 | 1 |
0.8%
|
|
| 65 | 1 |
0.8%
|
|
| 70 | 1 |
0.8%
|
|
| Sysmiss | 501 |