| 1998 | 2005 | 2012 | ||||
| Variable | Mean | Std. Dev. | Mean | Std. Dev. | Mean | Std. Dev. |
| Price | 0.2491 | 0.1299 | 0.1992 | 0.0715 | 0.2495 | 0.0870 |
| Quantity | 196.60 | 661.70 | 238.77 | 777.94 | 252.28 | 795.59 |
| Interstop | 0.8310 | 0.4331 | 0.8110 | 0.4214 | 0.8015 | 0.4281 |
| Inconvenience | 1.1223 | 0.1961 | 1.1345 | 0.2064 | 1.1491 | 0.2316 |
| HUB_Origin | 0.1644 | 0.3707 | 0.1616 | 0.3681 | 0.1666 | 0.3726 |
| Tour | 0.1325 | 0.3391 | 0.1851 | 0.3884 | 0.1270 | 0.3329 |
| Slot_control | 0.2839 | 0.4850 | 0.1511 | 0.3635 | 0.1636 | 0.3738 |
| Distance | 1.8583 | 0.6633 | 1.8627 | 0.6690 | 1.7452 | 0.6992 |
| HUB_MC | 0.7442 | 0.4364 | 0.7233 | 0.4474 | 0.4201 | 0.4936 |
| Slot_MC | 0.2681 | 0.4430 | 0.1492 | 0.3563 | 0.1621 | 0.3686 |
| Legacy_mkt | 31.162 | 19.705 | 27.646 | 17.847 | 21.586 | 13.697 |
| LCC_mkt | 9.373 | 6.005 | 11.688 | 7.630 | 14.541 | 7.647 |
| No. of products | 8150 | 11456 | 10429 | |||
| No. of markets | 274 | 411 | 398 | |||