1. It would better if you used MAPSGFK rather than MAPSSAS (MAPS). MAPSGFK is consistent where MAPSSAS was not. You can reassign MAPS to be either MAPSSAS (default) or MAPSGFK. MAPSSAS will soon be replaced and hasn't been updated. MAPSGFK is updated by a 3rd party. For more info, see: http://support.sas.com/rnd/papers/#2013 and the paper Tips and Tricks: Using the new SAS Map data sets
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