Index | Proportion in total | Increase or decrease over the previous year: Percentage point |
Reasons for abnormal flights of all airlines | 100.00% | 0.00 |
Weather reasons | 47.46% | −3.83 |
Airlines reasons | 21.14% | 12.52 |
Air traffic control reason (Including flow reason) | 2.31% | −5.42 |
Others | 29.09 | −3.29 |