| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 25 |
1.9%
|
| 1 | 826 |
63.3%
|
|
| 2 | 272 |
20.9%
|
|
| 3 | 98 |
7.5%
|
|
| 4 | 44 |
3.4%
|
|
| 5 | 15 |
1.2%
|
|
| 6 | 9 |
0.7%
|
|
| 7 | 2 |
0.2%
|
|
| 8 | 2 |
0.2%
|
|
| 10 | 3 |
0.2%
|
|
| 12 | 1 |
0.1%
|
|
| 14 | 1 |
0.1%
|
|
| 15 | 1 |
0.1%
|
|
| 20 | 1 |
0.1%
|
|
| 25 | 1 |
0.1%
|
|
| 123 | 1 |
0.1%
|
|
| 2017 | 1 |
0.1%
|
|
| 2019 | 1 |
0.1%
|
|
| Sysmiss | 106 |