Click here to see the SAS code.
Click here to see the example.

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This example was somewhat based on:
http://www.oilandvolts.com/wp-content/uploads/2011/08/gas-mint-infographic.png
(but I didn't like the way they graphed the data, so I used a different approach)

This example demonstrates how to use "proc geocode" to do 
city-level geocoding, and then plot the data on a map (using
annotated 'pie' markers) with the size & color of the marker 
representing the data.

A legend/key is also drawn on the map, using Annotate.

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