Frequencies for first 10,000 rows of drg4ing2 variable in nhamcsed1995 dataset : ingredient | code #2 for | drug #4 | Freq. Percent Cum. ------------+----------------------------------- | 9,901 99.01 99.01 50530 | 1 0.01 99.02 50728 | 1 0.01 99.03 51064 | 1 0.01 99.04 51340 | 10 0.10 99.14 51708 | 1 0.01 99.15 51860 | 1 0.01 99.16 52490 | 2 0.02 99.18 52650 | 18 0.18 99.36 52720 | 5 0.05 99.41 53175 | 9 0.09 99.50 53895 | 2 0.02 99.52 54094 | 6 0.06 99.58 54395 | 1 0.01 99.59 54400 | 1 0.01 99.60 54455 | 2 0.02 99.62 54465 | 1 0.01 99.63 54523 | 1 0.01 99.64 54595 | 2 0.02 99.66 54860 | 3 0.03 99.69 54890 | 7 0.07 99.76 55240 | 1 0.01 99.77 55315 | 2 0.02 99.79 55710 | 1 0.01 99.80 55915 | 1 0.01 99.81 55925 | 1 0.01 99.82 55997 | 12 0.12 99.94 56020 | 1 0.01 99.95 56710 | 2 0.02 99.97 57033 | 3 0.03 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016