Frequencies for first 10,000 rows of drg2ing1 variable in nhamcsed1994 dataset : ingredient | code #1 for | drug #2 | Freq. Percent Cum. ------------+----------------------------------- | 9,422 94.22 94.22 50000 | 7 0.07 94.29 50005 | 199 1.99 96.28 50145 | 57 0.57 96.85 50163 | 1 0.01 96.86 50182 | 1 0.01 96.87 50260 | 24 0.24 97.11 50275 | 5 0.05 97.16 50325 | 8 0.08 97.24 50410 | 5 0.05 97.29 50420 | 28 0.28 97.57 50450 | 5 0.05 97.62 50495 | 1 0.01 97.63 50690 | 1 0.01 97.64 50745 | 1 0.01 97.65 50785 | 1 0.01 97.66 50806 | 4 0.04 97.70 50900 | 6 0.06 97.76 51130 | 8 0.08 97.84 51200 | 1 0.01 97.85 51340 | 15 0.15 98.00 51345 | 1 0.01 98.01 51670 | 21 0.21 98.22 51675 | 17 0.17 98.39 51903 | 1 0.01 98.40 51910 | 15 0.15 98.55 52023 | 2 0.02 98.57 52065 | 8 0.08 98.65 52070 | 1 0.01 98.66 52318 | 1 0.01 98.67 52478 | 1 0.01 98.68 52490 | 23 0.23 98.91 52495 | 1 0.01 98.92 52615 | 2 0.02 98.94 52630 | 1 0.01 98.95 52645 | 6 0.06 99.01 52655 | 13 0.13 99.14 52885 | 5 0.05 99.19 52955 | 1 0.01 99.20 53003 | 1 0.01 99.21 53325 | 1 0.01 99.22 53335 | 1 0.01 99.23 53780 | 14 0.14 99.37 53895 | 12 0.12 99.49 54385 | 7 0.07 99.56 54595 | 1 0.01 99.57 54655 | 1 0.01 99.58 54770 | 3 0.03 99.61 54960 | 3 0.03 99.64 55555 | 32 0.32 99.96 55835 | 3 0.03 99.99 56345 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016