Frequencies for first 10,000 rows of rx8cat3 variable in nhamcsed2010 dataset : For RX8, | MULTUM drug | category #3 | - most | detailed | level (can | be either | Level 1,2 | Freq. Percent Cum. ------------+----------------------------------- | 9,993 99.93 99.93 197 | 1 0.01 99.94 203 | 5 0.05 99.99 433 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016