Frequencies for first 10,000 rows of drg6ing3 variable in namcs2002 dataset : Ingredient | code #3 for | medication | #3 | Freq. Percent Cum. ------------+----------------------------------- | 9,991 99.91 99.91 55080 | 1 0.01 99.92 55755 | 2 0.02 99.94 56340 | 1 0.01 99.95 70154 | 1 0.01 99.96 70335 | 1 0.01 99.97 70358 | 1 0.01 99.98 70369 | 1 0.01 99.99 70438 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016