| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 26 |
26%
|
| 2 | 12 |
12%
|
|
| 3 | 8 |
8%
|
|
| 4 | 5 |
5%
|
|
| 5 | 9 |
9%
|
|
| 6 | 4 |
4%
|
|
| 7 | 2 |
2%
|
|
| 8 | 1 |
1%
|
|
| 9 | 1 |
1%
|
|
| 10 | 1 |
1%
|
|
| 11 | 1 |
1%
|
|
| 12 | 1 |
1%
|
|
| 15 | 1 |
1%
|
|
| 20 | 5 |
5%
|
|
| 22 | 1 |
1%
|
|
| 25 | 1 |
1%
|
|
| 26 | 1 |
1%
|
|
| 30 | 1 |
1%
|
|
| 35 | 1 |
1%
|
|
| 40 | 1 |
1%
|
|
| 56 | 1 |
1%
|
|
| 60 | 1 |
1%
|
|
| 65 | 2 |
2%
|
|
| 70 | 1 |
1%
|
|
| 84 | 1 |
1%
|
|
| 97 | 1 |
1%
|
|
| 99 | 10 |
10%
|
|
| Sysmiss | 259 |