Number of Stations Contributing to CAS and DLR DCB Products Near the Beginning and Ending of 2021
| Signal | CAS | DLR | ||
|---|---|---|---|---|
| Begin | End | Begin | End | |
| C2I | 190 | 205 | 110 | 120 |
| C6I | 140 | 180 | 95 | 110 |
| C7I | 190 | 205 | 110 | 120 |
| C1P | 40 | 90 | 30 | 50 |
| C1X | 25 | 50 | 25 | 35 |
| C5P | 40 | 90 | 30 | 50 |
| C5X | 30 | 90 | 30 | 35 |
| C7D | 10 | 60 | ||
| C7Z | 20 | 35 | 20 | 20 |
| C8X | 20 | 35 | 15 | 15 |