Frequencies for first 10,000 rows of drg4ing2 variable in nhamcsopd2001 dataset : ingredient | code #2 for | medication | #4 | Freq. Percent Cum. ------------+----------------------------------- | 9,894 98.94 98.94 50005 | 1 0.01 98.95 50410 | 1 0.01 98.96 50728 | 3 0.03 98.99 50745 | 1 0.01 99.00 51170 | 2 0.02 99.02 51340 | 3 0.03 99.05 51860 | 1 0.01 99.06 51910 | 6 0.06 99.12 52045 | 1 0.01 99.13 52065 | 1 0.01 99.14 52454 | 1 0.01 99.15 52650 | 4 0.04 99.19 53050 | 1 0.01 99.20 53175 | 1 0.01 99.21 53280 | 4 0.04 99.25 53754 | 2 0.02 99.27 53780 | 3 0.03 99.30 53820 | 3 0.03 99.33 53895 | 1 0.01 99.34 54094 | 2 0.02 99.36 54890 | 1 0.01 99.37 54960 | 1 0.01 99.38 54990 | 4 0.04 99.42 55710 | 2 0.02 99.44 55925 | 3 0.03 99.47 55997 | 13 0.13 99.60 56120 | 1 0.01 99.61 56193 | 1 0.01 99.62 56194 | 4 0.04 99.66 56355 | 4 0.04 99.70 56445 | 2 0.02 99.72 57130 | 4 0.04 99.76 57146 | 1 0.01 99.77 57206 | 1 0.01 99.78 57208 | 3 0.03 99.81 70011 | 1 0.01 99.82 70015 | 1 0.01 99.83 70027 | 1 0.01 99.84 70150 | 2 0.02 99.86 70152 | 2 0.02 99.88 70216 | 1 0.01 99.89 70341 | 3 0.03 99.92 70359 | 3 0.03 99.95 70366 | 1 0.01 99.96 70403 | 1 0.01 99.97 80007 | 2 0.02 99.99 91011 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016