Celtic's average attendance of 49,697 places them 16th in the world, while Rangers are 18th for pulling in 49,054 fans on average when in the top flight.
Rangers' proportion of the distribution of spectators in Scotland was 27.4%, 8th overall for national audience share across the 51 leagues studied (Celtic's figures were even higher, mainly due to their stadium holding approximately 9,000 more seats).
