| Most Used Downlink Msg Elements Jan00 to Jun09 | Msg# | TOTAL | %Used |
| POSITION REPORT [positionreport] | 48 | 2452871 | 33.302 |
| WILCO | 0 | 2131510 | 28.939 |
| REQUEST CLIMB TO [level] | 9 | 628066 | 8.527 |
| REACHING [level] | 72 | 356928 | 4.846 |
| [freetext] | 67 | 329651 | 4.476 |
| ROGER | 3 | 250090 | 3.395 |
| DUE TO AIRCRAFT PERFORMANCE | 66 | 202016 | 2.743 |
| REQUEST WEATHER DEVIATION UP TO [dist][direction] OF ROUTE | 27 | 187621 | 2.547 |
| LEVEL [level] | 37 | 185496 | 2.518 |
| CLIMBING TO [level] | 29 | 144320 | 1.959 |
| BACK ON ROUTE | 41 | 125209 | 1.700 |
| DUE TO WEATHER | 65 | 69373 | 0.942 |
| REQUEST BLOCK [level] THROUGH [level] | 7 | 49727 | 0.675 |
| REQUEST [level] | 6 | 45635 | 0.620 |
| NOT CURRENT DATA AUTHORITY | 63 | 27517 | 0.374 |
| DEVIATING [dist] [direction] OF ROUTE | 80 | 25026 | 0.340 |
| REQUEST CRUISE CLIMB TO [level] | 8 | 24636 | 0.334 |
| REQUEST DESCENT TO [level] | 10 | 14299 | 0.194 |
| PRESENT SPEED [speed] | 34 | 10504 | 0.143 |
| WHEN CAN WE EXPECT HIGHER ALTITUDE | 53 | 10314 | 0.140 |
| REQUEST DIRECT TO [position] | 22 | 9773 | 0.133 |
| REQUEST OFFSET [dist] [direction] OF ROUTE | 15 | 8985 | 0.122 |
| STANDBY | 2 | 8537 | 0.116 |
| AT [position] REQUEST CLIMB TO [level] | 11 | 7216 | 0.098 |
| PRESENT LEVEL [level] | 32 | 6098 | 0.083 |
| REQUEST [speed] | 18 | 6067 | 0.082 |
| AT PILOTS DISCRETION | 75 | 5722 | 0.078 |
| UNABLE | 1 | 5113 | 0.069 |
| REQUEST CLEARANCE | 25 | 5027 | 0.068 |
| NEXT WAYPOINT ETA [time] | 43 | 4282 | 0.058 |
| ASSIGNED ROUTE [routeclearance] | 40 | 2837 | 0.039 |
| WHEN CAN WE EXPECT CRUISE CLIMB TO [level] | 54 | 2803 | 0.038 |
| REQUEST VOICE CONTACT | 20 | 2697 | 0.037 |
| REQUEST [routeclearance] | 24 | 2518 | 0.034 |
| REQUEST WEATHER DEVIATION TO [posn] VIA [routecnce] | 26 | 2345 | 0.032 |
| REACHING BLOCK [level] TO [level] | 76 | 1669 | 0.023 |
| DESCENDING TO [level] | 30 | 1629 | 0.022 |
| AFFIRM | 4 | 1489 | 0.020 |
| AT [time] REQUEST CLIMB TO [level] | 13 | 1343 | 0.018 |
| ENSUING WAYPOINT [position] | 44 | 979 | 0.013 |
| AT [time] [distance] [tofrom] [position] | 78 | 968 | 0.013 |
| LEAVING [level] | 28 | 761 | 0.010 |
| AT [position] REQUEST OFFSET [dist] [direction] OF ROUTE | 16 | 743 | 0.010 |
| NEXT WAYPOINT [position] | 42 | 601 | 0.008 |
| WHEN CAN WE EXPECT BACK ON ROUTE | 51 | 524 | 0.007 |
| ASSIGNED LEVEL [level] | 38 | 464 | 0.006 |
| MAINTAIN OWN SEPARATION AND VMC | 74 | 459 | 0.006 |
| WHEN CAN WE EXPECT [speed] | 49 | 431 | 0.006 |
| NEGATIVE | 5 | 400 | 0.005 |
| ASSIGNED BLOCK [level] TO [level] | 77 | 287 | 0.004 |
| AT [position] REQUEST DESCENT TO [level] | 12 | 274 | 0.004 |
| REPORTED WAYPOINT [position] | 45 | 202 | 0.003 |
| PRESENT POSITION [position] | 33 | 199 | 0.003 |
| REQUEST [procedurename] | 23 | 188 | 0.003 |
| REPORTED WAYPOINT [time] | 46 | 151 | 0.002 |
| WHEN CAN WE EXPECT LOWER ALTITUDE | 52 | 149 | 0.002 |
| REQUEST HEADING [degrees] | 70 | 128 | 0.002 |
| PASSING [position] | 31 | 108 | 0.001 |
| AT [time] REQUEST OFFSET [dist] [direction] OF ROUTE | 17 | 103 | 0.001 |
| [remainingfuel] OF FUEL AND [remainingsouls] SOULS ON BOARD | 57 | 87 | 0.001 |
| AT [time] REQUEST DESCENT TO [level] | 14 | 76 | 0.001 |
| REQUEST VOICE CONTACT [freq] | 21 | 69 | 0.001 |
| ASSIGNED SPEED [speed] | 39 | 41 | 0.001 |
| REQUEST GROUND TRACK [degrees] | 71 | 40 | 0.001 |
| [freetext] | 68 | 36 | 0.000 |
| DIVERTING TO [position] VIA [routeclearance] | 59 | 29 | 0.000 |
| MAYDAY MAYDAY MAYDAY | 56 | 26 | 0.000 |
| PAN PAN PAN | 55 | 24 | 0.000 |
| CANCEL EMERGENCY | 58 | 23 | 0.000 |
| REQUEST [speed] TO [speed] | 19 | 23 | 0.000 |
| SQUAWKING [beaconcode] | 47 | 15 | 0.000 |
| DESCENDING TO [level] | 61 | 15 | 0.000 |
| REQUEST VMC DESCENT | 69 | 9 | 0.000 |
| WHEN CAN WE EXPECT [speed] TO [speed] systems> | 50 | 8 | 0.000 |
| PRESENT HEADING [degrees] | 35 | 6 | 0.000 |
| PRESENT GROUND TRACK [degrees] | 36 | 5 | 0.000 |
| OFFSETTING [dist][direction] OF ROUTE | 60 | 3 | 0.000 |
| ATIS [atiscode] | 79 | 0 | 0.000 |
| Totals | Totals | 7365613 | 100.000 |