Retail spending and median housing price

I'm still working on the best way to present and explain this data, but I think it is clear that there are some strong correlations between retail spending and median housing price. Notice that these graphs can easily be misleading since there are scale games going on (each graph has the data series maximized which makes retail look like it has grown faster then it really has). I am either going to remake these with equal multipliers on both scales (like each one goes up 3x or 4x), or am going to do Y/Y percent changes (though this will give the data a slight lag).









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edit - let me help you visualize what I mean. Here is Miami before 2000:


A pretty clear relationship can be seen before 2000. Now if we include 2000 until 2006 housing breaks through the roof and there is a scale problem. Here I have each scale at a multiple of 4 (125 to 500 and 12,000 to 48,000) which is the only fair way to show the data... but retail gets lost due to it's relatively small increase in size:

Stay tuned and suggestions for how to do this or new cities to see are always welcome!