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

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In this example, I query the 1992 apparel manufacturing employment (sic 2200)
from the County Business Patterns data, and plot it on a county map by placing
a red dot in the center of each county, with the dot sized proportionally to
the number of employees.  I also annotate the state outlines using a heavy
black border.

Since many of the dots are tiny, and some of the larger dots overlap, I decided 
not to add html charttips (showing the values) to the dots in this example.

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