| Value | Category | Cases | |
|---|---|---|---|
| 1 | Brown | 7 |
0.1%
|
| 2 | Yellow | 471 |
8.2%
|
| 3 | Green | 14 |
0.2%
|
| 4 | Black | 6 |
0.1%
|
| 5 | Gray | 3 |
0.1%
|
| 999 | Don't know | 60 |
1%
|
| Sysmiss | 5185 |
90.2%
|