| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
2.6%
|
| 0 | 2 |
2.6%
|
|
| 1 | 15 |
19.7%
|
|
| 2 | 4 |
5.3%
|
|
| 3 | 13 |
17.1%
|
|
| 4 | 2 |
2.6%
|
|
| 5 | 3 |
3.9%
|
|
| 6 | 2 |
2.6%
|
|
| 7 | 3 |
3.9%
|
|
| 8 | 3 |
3.9%
|
|
| 10 | 6 |
7.9%
|
|
| 13 | 1 |
1.3%
|
|
| 14 | 1 |
1.3%
|
|
| 15 | 4 |
5.3%
|
|
| 18 | 1 |
1.3%
|
|
| 19 | 1 |
1.3%
|
|
| 20 | 3 |
3.9%
|
|
| 23 | 1 |
1.3%
|
|
| 25 | 2 |
2.6%
|
|
| 30 | 1 |
1.3%
|
|
| 45 | 1 |
1.3%
|
|
| 70 | 1 |
1.3%
|
|
| 80 | 1 |
1.3%
|
|
| 135 | 1 |
1.3%
|
|
| 697 | 1 |
1.3%
|
|
| 1200 | 1 |
1.3%
|
|
| Sysmiss | 76 |