Question: What is the approximate capacity of passengers per year of the airport that is considered Condor Flugdienst's main base?
Sentence (from "Condor Flugdienst"): Its main base is at Frankfurt Airport from which most of its long-haul flights depart; secondary bases for Mediterranean flights are Munich Airport which also features long-haul flights, Hamburg Airport, Hannover Airport, Düsseldorf Airport, Stuttgart Airport, Leipzig/Halle Airport and Berlin Schönefeld Airport.
Relevant evidence: Yes