Frequencies for first 10,000 rows of drg4ing2 variable in namcs1993 dataset : ingredient | code #2 for | medication | #4 | Freq. Percent Cum. ------------+----------------------------------- | 9,902 99.02 99.02 50005 | 1 0.01 99.03 50410 | 1 0.01 99.04 50690 | 1 0.01 99.05 50728 | 5 0.05 99.10 50745 | 2 0.02 99.12 50785 | 1 0.01 99.13 50920 | 1 0.01 99.14 51120 | 1 0.01 99.15 51130 | 1 0.01 99.16 51170 | 1 0.01 99.17 51250 | 3 0.03 99.20 51340 | 4 0.04 99.24 52065 | 1 0.01 99.25 52355 | 1 0.01 99.26 52645 | 3 0.03 99.29 52650 | 7 0.07 99.36 52655 | 1 0.01 99.37 52715 | 1 0.01 99.38 52825 | 1 0.01 99.39 52885 | 1 0.01 99.40 53050 | 1 0.01 99.41 53175 | 5 0.05 99.46 53220 | 1 0.01 99.47 53325 | 1 0.01 99.48 53820 | 4 0.04 99.52 53895 | 1 0.01 99.53 54094 | 1 0.01 99.54 54290 | 1 0.01 99.55 54455 | 7 0.07 99.62 54465 | 1 0.01 99.63 54765 | 1 0.01 99.64 54890 | 11 0.11 99.75 54960 | 2 0.02 99.77 55460 | 1 0.01 99.78 55850 | 1 0.01 99.79 55915 | 1 0.01 99.80 55925 | 12 0.12 99.92 55997 | 3 0.03 99.95 56185 | 2 0.02 99.97 56194 | 1 0.01 99.98 56195 | 1 0.01 99.99 57033 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016