Frequencies for first 10,000 rows of rx6cat3 variable in nhamcsed2011 dataset : For RX6, | MULTUM drug | category #3 | - most | detailed | level (can | be either | Level 1,2 | Freq. Percent Cum. ------------+----------------------------------- | 9,977 99.77 99.77 197 | 6 0.06 99.83 203 | 8 0.08 99.91 204 | 3 0.03 99.94 430 | 1 0.01 99.95 433 | 5 0.05 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016