Frequencies for first 10,000 rows of extracoverageingap variable in planreport2007 dataset : Extra | Coverage in | Gap | Freq. Percent Cum. ------------+----------------------------------- | 7,111 71.11 71.11 Y | 2,889 28.89 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 14 Apr 2016