Frequencies for first 10,000 rows of prov3430 variable in pos1999 dataset : srv: | dental-onsi | te-non | residents | Freq. Percent Cum. ------------+----------------------------------- | 7,387 73.87 73.87 N | 2,573 25.73 99.60 Y | 40 0.40 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016