Frequencies for first 10,000 rows of drg4ing2 variable in namcs2000 dataset : ingredient | code #2 for | medication | #4 | Freq. Percent Cum. ------------+----------------------------------- | 9,887 98.87 98.87 50005 | 1 0.01 98.88 50728 | 4 0.04 98.92 50745 | 1 0.01 98.93 50920 | 1 0.01 98.94 51242 | 1 0.01 98.95 51290 | 2 0.02 98.97 51340 | 3 0.03 99.00 52065 | 2 0.02 99.02 52490 | 6 0.06 99.08 52535 | 1 0.01 99.09 52645 | 1 0.01 99.10 52650 | 5 0.05 99.15 52720 | 3 0.03 99.18 52825 | 1 0.01 99.19 52883 | 1 0.01 99.20 53175 | 2 0.02 99.22 53280 | 3 0.03 99.25 53445 | 4 0.04 99.29 53635 | 1 0.01 99.30 53720 | 1 0.01 99.31 53754 | 3 0.03 99.34 53780 | 3 0.03 99.37 53820 | 3 0.03 99.40 53895 | 1 0.01 99.41 53915 | 1 0.01 99.42 53965 | 1 0.01 99.43 53970 | 1 0.01 99.44 54094 | 1 0.01 99.45 54405 | 1 0.01 99.46 54455 | 1 0.01 99.47 54465 | 2 0.02 99.49 54468 | 1 0.01 99.50 54860 | 1 0.01 99.51 54890 | 6 0.06 99.57 54960 | 6 0.06 99.63 55385 | 1 0.01 99.64 55460 | 1 0.01 99.65 55915 | 1 0.01 99.66 55925 | 10 0.10 99.76 55997 | 3 0.03 99.79 56120 | 2 0.02 99.81 56185 | 1 0.01 99.82 56194 | 3 0.03 99.85 56195 | 1 0.01 99.86 56345 | 1 0.01 99.87 56355 | 2 0.02 99.89 57033 | 1 0.01 99.90 57058 | 1 0.01 99.91 57136 | 2 0.02 99.93 57208 | 2 0.02 99.95 59645 | 1 0.01 99.96 59735 | 1 0.01 99.97 70012 | 1 0.01 99.98 80007 | 1 0.01 99.99 91011 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016