Frequencies for first 10,000 rows of drg5ing2 variable in nhamcsed1993 dataset : ingredient | code #2 for | drug #5 | Freq. Percent Cum. ------------+----------------------------------- | 9,968 99.68 99.68 50530 | 1 0.01 99.69 50728 | 1 0.01 99.70 51340 | 2 0.02 99.72 52023 | 1 0.01 99.73 52490 | 1 0.01 99.74 52650 | 3 0.03 99.77 52825 | 1 0.01 99.78 53050 | 1 0.01 99.79 53175 | 6 0.06 99.85 54094 | 2 0.02 99.87 54455 | 1 0.01 99.88 54595 | 1 0.01 99.89 54800 | 1 0.01 99.90 54890 | 2 0.02 99.92 54960 | 1 0.01 99.93 55000 | 1 0.01 99.94 55200 | 1 0.01 99.95 55315 | 1 0.01 99.96 55320 | 1 0.01 99.97 55997 | 2 0.02 99.99 80007 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016