Frequencies for first 10,000 rows of drg4ing2 variable in namcs1998 dataset : ingredient | code #2 for | medication | #4 | Freq. Percent Cum. ------------+----------------------------------- | 9,914 99.14 99.14 50728 | 1 0.01 99.15 51064 | 2 0.02 99.17 51175 | 1 0.01 99.18 51290 | 4 0.04 99.22 51340 | 5 0.05 99.27 51708 | 2 0.02 99.29 51903 | 1 0.01 99.30 52490 | 4 0.04 99.34 52645 | 1 0.01 99.35 52650 | 5 0.05 99.40 52720 | 1 0.01 99.41 52883 | 1 0.01 99.42 52885 | 1 0.01 99.43 52990 | 2 0.02 99.45 53175 | 2 0.02 99.47 53280 | 4 0.04 99.51 53445 | 1 0.01 99.52 53780 | 1 0.01 99.53 53820 | 6 0.06 99.59 53965 | 1 0.01 99.60 54094 | 2 0.02 99.62 54455 | 1 0.01 99.63 54465 | 2 0.02 99.65 54800 | 1 0.01 99.66 54860 | 1 0.01 99.67 54890 | 4 0.04 99.71 54960 | 5 0.05 99.76 55240 | 1 0.01 99.77 55460 | 2 0.02 99.79 55925 | 9 0.09 99.88 56193 | 1 0.01 99.89 56194 | 2 0.02 99.91 56345 | 1 0.01 99.92 56355 | 1 0.01 99.93 57033 | 1 0.01 99.94 57128 | 1 0.01 99.95 57136 | 3 0.03 99.98 80007 | 2 0.02 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016