Frequencies for first 10,000 rows of drg5ing2 variable in namcs1999 dataset : ingredient | code #2 for | medication | #5 | Freq. Percent Cum. ------------+----------------------------------- | 9,941 99.41 99.41 50005 | 1 0.01 99.42 50728 | 2 0.02 99.44 50745 | 1 0.01 99.45 50785 | 1 0.01 99.46 51175 | 1 0.01 99.47 51290 | 1 0.01 99.48 51340 | 1 0.01 99.49 51708 | 1 0.01 99.50 52065 | 1 0.01 99.51 52645 | 1 0.01 99.52 52650 | 9 0.09 99.61 52720 | 1 0.01 99.62 52883 | 1 0.01 99.63 53280 | 1 0.01 99.64 53370 | 1 0.01 99.65 53445 | 4 0.04 99.69 53754 | 4 0.04 99.73 53805 | 1 0.01 99.74 54094 | 3 0.03 99.77 54235 | 1 0.01 99.78 54700 | 1 0.01 99.79 54960 | 1 0.01 99.80 55330 | 1 0.01 99.81 55915 | 1 0.01 99.82 55925 | 3 0.03 99.85 55997 | 5 0.05 99.90 56192 | 1 0.01 99.91 56194 | 2 0.02 99.93 56195 | 1 0.01 99.94 56285 | 1 0.01 99.95 57033 | 1 0.01 99.96 57208 | 1 0.01 99.97 59702 | 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