| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, colour changed | 628 |
3.2%
|
| 2 | No change in colour | 757 |
3.9%
|
| 3 | Reading cannot be taken | 5 |
0%
|
| 9 | Missing | 12 |
0.1%
|
| Sysmiss | 17958 |
92.8%
|