Frequencies for first 10,000 rows of drg4ing1 variable in nhamcsed2001 dataset : ingredient | code #1 for | drug #4 | Freq. Percent Cum. ------------+----------------------------------- | 9,884 98.84 98.84 50000 | 1 0.01 98.85 50002 | 1 0.01 98.86 50005 | 52 0.52 99.38 50145 | 14 0.14 99.52 50260 | 2 0.02 99.54 50275 | 3 0.03 99.57 50325 | 2 0.02 99.59 50530 | 1 0.01 99.60 50570 | 1 0.01 99.61 50806 | 1 0.01 99.62 50868 | 1 0.01 99.63 50899 | 1 0.01 99.64 50933 | 1 0.01 99.65 51130 | 2 0.02 99.67 51689 | 1 0.01 99.68 51910 | 4 0.04 99.72 52040 | 1 0.01 99.73 52045 | 1 0.01 99.74 52354 | 1 0.01 99.75 52450 | 1 0.01 99.76 52490 | 3 0.03 99.79 52645 | 5 0.05 99.84 52655 | 1 0.01 99.85 52720 | 3 0.03 99.88 53780 | 6 0.06 99.94 53895 | 1 0.01 99.95 55555 | 2 0.02 99.97 56261 | 1 0.01 99.98 57122 | 1 0.01 99.99 57186 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016