Frequencies for first 10,000 rows of rx22v2c3 variable in namcs2015 dataset : For RX22, | level 2 of | MULTUM drug | category #3 | Freq. Percent Cum. ------------+----------------------------------- | 9,998 99.98 99.98 064 | 1 0.01 99.99 433 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 25 Oct 2017