| Value | Category | Cases | |
|---|---|---|---|
| 0 | none | 4804 |
98.4%
|
| 1 | 21 |
0.4%
|
|
| 2 | 18 |
0.4%
|
|
| 3 | 18 |
0.4%
|
|
| 4 | 6 |
0.1%
|
|
| 5 | 6 |
0.1%
|
|
| 6 | 1 |
0%
|
|
| 7 | 1 |
0%
|
|
| 8 | 2 |
0%
|
|
| 9 | 1 |
0%
|
|
| 10 | 1 |
0%
|
|
| 15 | 1 |
0%
|
|
| 77 | refused | 0 |
0%
|
| 88 | don't know | 0 |
0%
|
| 99 | missing | 0 |
0%
|
| Sysmiss | 90 |