Even Westvang did this amazing short animation showing the patterns of 300.000 Norwegians moving house. He did it by cross-referencing 8 million tax records from 2006 and 2007 to track changes in postal codes.
This kind of dataset is rarely available for other countries (via information aesthetics). In Norway it is made public every year!*
Deluge from even westvang on Vimeo.
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*obs. Now you might be thinking "....mmm. I should have used Norway data in my PhD. Dammit"
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