Frequencies for first 10,000 rows of drg4ing1 variable in nhamcsed2002 dataset : ingredient | code #1 for | drug #4 | Freq. Percent Cum. ------------+----------------------------------- | 9,870 98.70 98.70 50000 | 1 0.01 98.71 50005 | 66 0.66 99.37 50260 | 8 0.08 99.45 50410 | 1 0.01 99.46 50450 | 1 0.01 99.47 50570 | 1 0.01 99.48 50806 | 2 0.02 99.50 50869 | 1 0.01 99.51 50938 | 1 0.01 99.52 51670 | 2 0.02 99.54 51910 | 4 0.04 99.58 52045 | 1 0.01 99.59 52354 | 4 0.04 99.63 52447 | 1 0.01 99.64 52490 | 2 0.02 99.66 52645 | 2 0.02 99.68 52655 | 1 0.01 99.69 52883 | 2 0.02 99.71 53003 | 1 0.01 99.72 53780 | 10 0.10 99.82 54395 | 4 0.04 99.86 55521 | 3 0.03 99.89 55555 | 7 0.07 99.96 59606 | 1 0.01 99.97 70212 | 1 0.01 99.98 70217 | 1 0.01 99.99 70256 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016