| Value | Category | Cases | |
|---|---|---|---|
| 0 | 235 |
26.5%
|
|
| 2 | 1 |
0.1%
|
|
| 4 | 1 |
0.1%
|
|
| 8 | 1 |
0.1%
|
|
| 9 | 89 |
10%
|
|
| 10 | 4 |
0.5%
|
|
| 20 | 1 |
0.1%
|
|
| 23 | 1 |
0.1%
|
|
| 77 | Don't know | 5 |
0.6%
|
| 99 | Don't know | 550 |
61.9%
|
| Sysmiss | 1596 |