Frequencies for first 10,000 rows of drg1ing3 variable in nhamcsed2000 dataset : ingredient | code #3 for | drug #1 | Freq. Percent Cum. ------------+----------------------------------- | 9,889 98.89 98.89 50637 | 3 0.03 98.92 50745 | 12 0.12 99.04 51960 | 1 0.01 99.05 52190 | 1 0.01 99.06 52990 | 1 0.01 99.07 53070 | 1 0.01 99.08 53175 | 18 0.18 99.26 54395 | 12 0.12 99.38 54455 | 2 0.02 99.40 54465 | 3 0.03 99.43 54595 | 8 0.08 99.51 54960 | 1 0.01 99.52 54995 | 3 0.03 99.55 55105 | 7 0.07 99.62 55145 | 1 0.01 99.63 55160 | 1 0.01 99.64 55180 | 1 0.01 99.65 55240 | 16 0.16 99.81 55610 | 1 0.01 99.82 55715 | 4 0.04 99.86 55745 | 1 0.01 99.87 56193 | 2 0.02 99.89 56585 | 7 0.07 99.96 70011 | 4 0.04 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016