This is a Continuously Variable proportional circle map. In this map the provide a key and estimate circles inbetween the key. No circle is the same size on this map unless they have the exaxt same value. This is opposite from the range graded proportional circle map becasue they have specific circle sized that represent a range. In this map you can see the mexican population is biggest in Texas, California, Nevada, and Arizona. That is becasue those are all the states on the Mexican border.
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