https://www.airservicesaustralia.com...reports/nfpms/
Air services have kindly posted the daily 2008 aircraft movement totals for capital city airports and some others.
I have listed SYD,MEL,BNE 3 busiest days-subj to error
SYD--- 931 --- 07 NOV 2008
SYD ---929 --- 14 FEB 2008
SYD ---922 ----11APR 2008
MEL ---609 ----05 NOV 2008
MEL ---607 ----11 NOV 2008
MEL ---607 ----02 OCT 2008
BNE ---586 ----30 OCT 2008
BNE ---586 ----18 DEC 2008
BNE ---583 ----07 NOV 2008
Cheers for those interested-other cities in link
Lloyd