Frequencies for first 10,000 rows of extracoverageingap variable in planreport2009 dataset : Extra | Coverage in | Gap | Freq. Percent Cum. ------------+----------------------------------- | 8,202 82.02 82.02 Y | 1,798 17.98 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 14 Apr 2016