Frequencies for first 10,000 rows of rx27cat2 variable in nhamcsed2014 dataset : For RX27, | MULTUM drug | category #2 | - most | detailed | level (can | be either | Level 1,2 | Freq. Percent Cum. ------------+----------------------------------- | 9,998 99.98 99.98 053 | 1 0.01 99.99 340 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 11 Apr 2017