The Soviet Air Force (VVS) in the beginning of Operation Barbarossa endured one of the most devastating defeats in aviation history, yet only 18 months later it was able to break the Germans air superiority.
See notes on Accuracy & “Methodology” (bottom) for more detailed information.
Ethan Meixsell - Demilitarized Zone (the Irony :D)
---Notes on Accuracy & “Methodology”---
The numbers are almost all rounded, for detailed numbers check out the script on militaryhistory.com which usually also includes references to the pages as well.
The displayed planes are just correct in terms of numbers not in terms of aircraft type (bomber, fighter – except if stated explicitly) nor specific aircraft.