Frequencies for first 10,000 rows of drg2ing1 variable in nhamcsed1998 dataset : ingredient | code #1 for | drug #2 | Freq. Percent Cum. ------------+----------------------------------- | 9,514 95.14 95.14 50000 | 8 0.08 95.22 50005 | 173 1.73 96.95 50145 | 62 0.62 97.57 50260 | 25 0.25 97.82 50275 | 6 0.06 97.88 50325 | 3 0.03 97.91 50410 | 4 0.04 97.95 50420 | 17 0.17 98.12 50450 | 2 0.02 98.14 50460 | 1 0.01 98.15 50690 | 1 0.01 98.16 50806 | 4 0.04 98.20 50898 | 1 0.01 98.21 50900 | 3 0.03 98.24 51055 | 1 0.01 98.25 51130 | 8 0.08 98.33 51340 | 8 0.08 98.41 51382 | 1 0.01 98.42 51450 | 1 0.01 98.43 51635 | 1 0.01 98.44 51647 | 1 0.01 98.45 51670 | 6 0.06 98.51 51675 | 9 0.09 98.60 51903 | 1 0.01 98.61 51910 | 13 0.13 98.74 52040 | 2 0.02 98.76 52045 | 2 0.02 98.78 52065 | 3 0.03 98.81 52070 | 1 0.01 98.82 52075 | 1 0.01 98.83 52450 | 2 0.02 98.85 52490 | 21 0.21 99.06 52615 | 3 0.03 99.09 52645 | 3 0.03 99.12 52655 | 7 0.07 99.19 52715 | 1 0.01 99.20 52730 | 1 0.01 99.21 52830 | 1 0.01 99.22 52955 | 1 0.01 99.23 52990 | 4 0.04 99.27 53003 | 1 0.01 99.28 53780 | 14 0.14 99.42 53895 | 11 0.11 99.53 54173 | 1 0.01 99.54 54332 | 1 0.01 99.55 54385 | 5 0.05 99.60 54508 | 1 0.01 99.61 54595 | 2 0.02 99.63 54605 | 1 0.01 99.64 54655 | 1 0.01 99.65 54713 | 2 0.02 99.67 54770 | 1 0.01 99.68 54960 | 1 0.01 99.69 55555 | 27 0.27 99.96 55835 | 3 0.03 99.99 56185 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016