Frequencies for first 10,000 rows of drg2ing1 variable in nhamcsed1999 dataset : ingredient | code #1 for | drug #2 | Freq. Percent Cum. ------------+----------------------------------- | 9,460 94.60 94.60 50000 | 8 0.08 94.68 50005 | 221 2.21 96.89 50035 | 1 0.01 96.90 50090 | 1 0.01 96.91 50145 | 55 0.55 97.46 50245 | 1 0.01 97.47 50260 | 28 0.28 97.75 50265 | 1 0.01 97.76 50275 | 3 0.03 97.79 50325 | 7 0.07 97.86 50410 | 3 0.03 97.89 50420 | 22 0.22 98.11 50450 | 6 0.06 98.17 50475 | 1 0.01 98.18 50530 | 1 0.01 98.19 50690 | 1 0.01 98.20 50745 | 1 0.01 98.21 50806 | 8 0.08 98.29 50898 | 1 0.01 98.30 50899 | 1 0.01 98.31 50900 | 5 0.05 98.36 50933 | 1 0.01 98.37 51130 | 6 0.06 98.43 51219 | 4 0.04 98.47 51340 | 9 0.09 98.56 51393 | 1 0.01 98.57 51635 | 1 0.01 98.58 51670 | 3 0.03 98.61 51675 | 5 0.05 98.66 51860 | 1 0.01 98.67 51890 | 1 0.01 98.68 51903 | 3 0.03 98.71 51910 | 12 0.12 98.83 52040 | 1 0.01 98.84 52045 | 4 0.04 98.88 52065 | 5 0.05 98.93 52075 | 1 0.01 98.94 52450 | 1 0.01 98.95 52478 | 1 0.01 98.96 52490 | 13 0.13 99.09 52615 | 1 0.01 99.10 52645 | 2 0.02 99.12 52650 | 1 0.01 99.13 52655 | 13 0.13 99.26 52885 | 1 0.01 99.27 52955 | 1 0.01 99.28 53070 | 2 0.02 99.30 53780 | 8 0.08 99.38 53875 | 1 0.01 99.39 53895 | 17 0.17 99.56 53915 | 1 0.01 99.57 54385 | 2 0.02 99.59 54508 | 2 0.02 99.61 54713 | 2 0.02 99.63 54915 | 1 0.01 99.64 55540 | 1 0.01 99.65 55555 | 32 0.32 99.97 55835 | 1 0.01 99.98 56261 | 2 0.02 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016