Frequencies for first 10,000 rows of ncmed24 variable in namcs2015 dataset : Is | Medication | #24 new or | continued | Freq. Percent Cum. ------------+----------------------------------- -7 | 9,977 99.77 99.77 1 | 1 0.01 99.78 2 | 22 0.22 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 25 Oct 2017