Which 2 stations share the most music ?

In the Aircheck 'Did You Know' series they conduct a periodic analysis of 'Crossover of Songs on competitor stations'.

Below you can see the analysis from August 24 to September 24 done in Sydney, Melbourne, Brisbane, Perth, Adelaide and the Gold Coast.

While the below snapshot doesn't include all stations, there's some interesting detail to see. The highest crossover was between 96FM and Mix 94.5 Perth at 29.6%, closely followed by 2Day FM and Nova 96.9 on 29.2%.

See more stats here.