| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 4 |
5%
|
| 0 | 17 |
21.3%
|
|
| 1 | 16 |
20%
|
|
| 2 | 15 |
18.8%
|
|
| 3 | 8 |
10%
|
|
| 4 | 3 |
3.8%
|
|
| 5 | 1 |
1.3%
|
|
| 6 | 1 |
1.3%
|
|
| 8 | 1 |
1.3%
|
|
| 10 | 2 |
2.5%
|
|
| 12 | 1 |
1.3%
|
|
| 14 | 1 |
1.3%
|
|
| 20 | 1 |
1.3%
|
|
| 22 | 1 |
1.3%
|
|
| 30 | 2 |
2.5%
|
|
| 32 | 1 |
1.3%
|
|
| 35 | 1 |
1.3%
|
|
| 60 | 1 |
1.3%
|
|
| 70 | 1 |
1.3%
|
|
| 130 | 1 |
1.3%
|
|
| 1500 | 1 |
1.3%
|
|
| Sysmiss | 160 |