Frequencies for first 10,000 rows of drg1ing4 variable in nhamcsed2000 dataset : ingredient | code #4 for | drug #1 | Freq. Percent Cum. ------------+----------------------------------- | 9,947 99.47 99.47 51340 | 2 0.02 99.49 53175 | 1 0.01 99.50 53325 | 1 0.01 99.51 53620 | 1 0.01 99.52 54465 | 1 0.01 99.53 54468 | 1 0.01 99.54 54713 | 18 0.18 99.72 55180 | 12 0.12 99.84 55440 | 1 0.01 99.85 55461 | 1 0.01 99.86 55755 | 7 0.07 99.93 56180 | 1 0.01 99.94 56265 | 3 0.03 99.97 70018 | 1 0.01 99.98 70120 | 1 0.01 99.99 70161 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016