GAA attendance data

[macdanger2]

@ Farr, Oakleaflad & Maguire - county secretary in all three cases

"Pairc na gCeilteach has a capacity of 16000"
"Offical capacity of Kingspan Breffn  Park is 25262"
"The official capacity of MacHale Park, Castlebar, Co. Mayo is 28,000"