Frequencies for first 10,000 rows of drg2ing3 variable in nhamcsed2002 dataset : ingredient | code #3 for | drug #2 | Freq. Percent Cum. ------------+----------------------------------- | 9,931 99.31 99.31 50745 | 7 0.07 99.38 53175 | 7 0.07 99.45 54330 | 1 0.01 99.46 54395 | 1 0.01 99.47 54860 | 1 0.01 99.48 54960 | 1 0.01 99.49 55105 | 5 0.05 99.54 55180 | 1 0.01 99.55 55315 | 1 0.01 99.56 55348 | 1 0.01 99.57 55480 | 3 0.03 99.60 55715 | 1 0.01 99.61 56192 | 1 0.01 99.62 70011 | 1 0.01 99.63 70032 | 1 0.01 99.64 70120 | 10 0.10 99.74 70254 | 1 0.01 99.75 70259 | 1 0.01 99.76 70338 | 9 0.09 99.85 70358 | 3 0.03 99.88 70362 | 10 0.10 99.98 70394 | 1 0.01 99.99 70493 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016