I am not sure if this has been posted before. It was created in 2010, and may represent 2009 data or earlier. But still interesting. It is an interactive map; with some clicking on the legend, you can get it to color all towns, darker being more per thousand.
http://ibm.co/PaYKFQ
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It isn't clear from the description whether this includes LTC-B and FID cards.
http://ibm.co/PaYKFQ
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It isn't clear from the description whether this includes LTC-B and FID cards.