| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 |
10%
|
|
| 2 | 1 |
10%
|
|
| 3 | 1 |
10%
|
|
| 5 | 1 |
10%
|
|
| 7 | 1 |
10%
|
|
| 10 | 3 |
30%
|
|
| 20 | 2 |
20%
|
|
| 77 | Don't know | 0 |
0%
|
| Sysmiss | 6255 |