Just a quick question; why is Birmingham, GB (BHX) only a 6 bar airport despite it handling over 11,645,334 passengers in 2016 while an airport like Cleveland Hopkins, which only handled 8,422,676 in 2016, is a 7 bar airport? Surely this should be adjusted in game?
The data gathered for the airport sizes are perhaps outdated. Don't know if AS team has updated and adjusted in the last years.
Please send a message to support and present proved data (link to pages with reliable figures). That might help.
Perhaps it might be more beneficial if you listed the date of each countries stats so that those of us with some time might try and find out for you. It might help stop duplicated effort which would put people off from digging out the info.