| Value | Category | Cases | |
|---|---|---|---|
| 1 | a. 15 | 275 |
5.5%
|
| 2 | b. 21 | 849 |
16.9%
|
| 3 | c. 12 | 363 |
7.2%
|
| 4 | d. 22 | 3373 |
67.2%
|
| 5 | e. None of the above | 157 |
3.1%
|
| 11 | .R | 434 | |
| Sysmiss | 12 |