| Value | Category | Cases | |
|---|---|---|---|
| 2 | 1 |
6.7%
|
|
| 10 | 2 |
13.3%
|
|
| 20 | 1 |
6.7%
|
|
| 99 | DON'T KNOW/REFUSED | 11 |
73.3%
|
| Sysmiss | 9015 |