Frequencies for first 10,000 rows of med26 variable in namcs2015 dataset : Medication | #26 | Freq. Percent Cum. ------------+----------------------------------- -9 | 9,990 99.90 99.90 00042 | 1 0.01 99.91 04187 | 1 0.01 99.92 08006 | 1 0.01 99.93 15545 | 1 0.01 99.94 34520 | 1 0.01 99.95 41315 | 1 0.01 99.96 93237 | 1 0.01 99.97 97020 | 1 0.01 99.98 99080 | 1 0.01 99.99 99214 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 25 Oct 2017