Another different look at the data.
How the 10 oldest clubs have performed against each other:
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An uptick next season is definitely needed! If you have a look at the dip in 2010-11 and then the recovery, it's definitely doable jumping up again from where we currently are, but it's a lot harder without media support.
And below, the average across all seasons (orange) by week of the year. Four week rolling average in red.
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One thing to consider with this is the scheduling of blockbusters and derbies. I haven't gone in depth with these matches, but I kinda get the feeling that the trough before Christmas is due to lack of big matches, where those are saved for season launches and New Year holidays. But that's just a guess right now. And then of course there's the launch of BBL, but that, and the heat, surprisingly don't seem to hurt the crowds.
There's a constant drop once AFL starts. A-League finals come just in time to arrest the drop, maybe could even start those a month earlier, and start the season 1-2 months earlier! It looks like the A-League can do well enough during AFL finals, although week one of AFL finals is a dead zone, this would be a good time to take matches elsewhere, or even have an international friendly like the Soccer Ashes.