| Value | Category | Cases | |
|---|---|---|---|
| 2 | 1 |
10%
|
|
| 21 | 1 |
10%
|
|
| 30 | 2 |
20%
|
|
| 36 | 1 |
10%
|
|
| 40 | 3 |
30%
|
|
| 48 | 2 |
20%
|
|
| 9999 | 9999. Don't know | 0 |
0%
|
| Sysmiss | 89 |