Frequencies for first 10,000 rows of drg4ing2 variable in nhamcsopd1999 dataset : ingredient | code #2 for | medication | #4 | Freq. Percent Cum. ------------+----------------------------------- | 9,908 99.08 99.08 50730 | 1 0.01 99.09 50773 | 1 0.01 99.10 51120 | 1 0.01 99.11 51290 | 1 0.01 99.12 51340 | 5 0.05 99.17 51708 | 1 0.01 99.18 51860 | 1 0.01 99.19 51903 | 2 0.02 99.21 52490 | 1 0.01 99.22 52650 | 3 0.03 99.25 52720 | 1 0.01 99.26 52730 | 1 0.01 99.27 52883 | 1 0.01 99.28 53175 | 1 0.01 99.29 53280 | 7 0.07 99.36 53298 | 1 0.01 99.37 53560 | 1 0.01 99.38 53600 | 1 0.01 99.39 53670 | 1 0.01 99.40 53720 | 1 0.01 99.41 53780 | 2 0.02 99.43 53820 | 6 0.06 99.49 53970 | 2 0.02 99.51 54094 | 3 0.03 99.54 54395 | 1 0.01 99.55 54455 | 3 0.03 99.58 54465 | 1 0.01 99.59 54468 | 1 0.01 99.60 54890 | 2 0.02 99.62 54960 | 3 0.03 99.65 54990 | 2 0.02 99.67 55240 | 1 0.01 99.68 55315 | 2 0.02 99.70 55710 | 1 0.01 99.71 55925 | 5 0.05 99.76 55997 | 5 0.05 99.81 56120 | 1 0.01 99.82 56194 | 5 0.05 99.87 56195 | 1 0.01 99.88 56355 | 1 0.01 99.89 57033 | 2 0.02 99.91 57136 | 1 0.01 99.92 57146 | 3 0.03 99.95 59645 | 1 0.01 99.96 70005 | 1 0.01 99.97 91011 | 3 0.03 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016