Frequencies for first 10,000 rows of rx17v1c3 variable in nhamcsed2014 dataset : For RX17, | level 1 of | MULTUM drug | category #3 | (broad | level) | Freq. Percent Cum. ------------+----------------------------------- | 9,996 99.96 99.96 057 | 2 0.02 99.98 113 | 1 0.01 99.99 331 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 11 Apr 2017