| Value | Category | Cases | |
|---|---|---|---|
| 1 | Brown | 91 |
1.6%
|
| 2 | Yellow | 4792 |
83.4%
|
| 3 | Green | 172 |
3%
|
| 4 | Black | 155 |
2.7%
|
| 5 | Gray | 62 |
1.1%
|
| 999 | Don't know | 344 |
6%
|
| Sysmiss | 130 |
2.3%
|