Frequencies for first 10,000 rows of drg5ing2 variable in nhamcsed2002 dataset : ingredient | code #2 for | drug #5 | Freq. Percent Cum. ------------+----------------------------------- | 9,948 99.48 99.48 50410 | 1 0.01 99.49 50728 | 1 0.01 99.50 52743 | 1 0.01 99.51 54330 | 1 0.01 99.52 54990 | 1 0.01 99.53 55180 | 1 0.01 99.54 55925 | 1 0.01 99.55 55997 | 5 0.05 99.60 57130 | 1 0.01 99.61 57146 | 1 0.01 99.62 70150 | 2 0.02 99.64 70217 | 14 0.14 99.78 70231 | 4 0.04 99.82 70235 | 1 0.01 99.83 70269 | 7 0.07 99.90 70308 | 1 0.01 99.91 70309 | 1 0.01 99.92 70330 | 1 0.01 99.93 70341 | 3 0.03 99.96 70359 | 1 0.01 99.97 70411 | 1 0.01 99.98 70595 | 1 0.01 99.99 70599 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016