Frequencies for first 10,000 rows of extracoverageingap variable in planreport2014 dataset : Extra | Coverage in | Gap | Freq. Percent Cum. ------------+----------------------------------- | 8,256 82.56 82.56 Y | 1,744 17.44 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 14 Apr 2016