| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.8%
|
| 0 | 21 |
16.4%
|
|
| 1 | 26 |
20.3%
|
|
| 2 | 18 |
14.1%
|
|
| 3 | 9 |
7%
|
|
| 4 | 6 |
4.7%
|
|
| 5 | 8 |
6.3%
|
|
| 6 | 5 |
3.9%
|
|
| 7 | 5 |
3.9%
|
|
| 8 | 3 |
2.3%
|
|
| 9 | 2 |
1.6%
|
|
| 10 | 1 |
0.8%
|
|
| 11 | 2 |
1.6%
|
|
| 12 | 1 |
0.8%
|
|
| 13 | 2 |
1.6%
|
|
| 14 | 1 |
0.8%
|
|
| 15 | 1 |
0.8%
|
|
| 18 | 1 |
0.8%
|
|
| 19 | 1 |
0.8%
|
|
| 20 | 5 |
3.9%
|
|
| 22 | 1 |
0.8%
|
|
| 25 | 3 |
2.3%
|
|
| 52 | 1 |
0.8%
|
|
| 64 | 1 |
0.8%
|
|
| 165 | 1 |
0.8%
|
|
| 223 | 1 |
0.8%
|
|
| 270 | 1 |
0.8%
|
|
| Sysmiss | 481 |