Frequencies for first 10,000 rows of drg4ing2 variable in nhamcsed1997 dataset : ingredient | code #2 for | drug #4 | Freq. Percent Cum. ------------+----------------------------------- | 9,895 98.95 98.95 50005 | 1 0.01 98.96 50410 | 1 0.01 98.97 50530 | 3 0.03 99.00 50728 | 1 0.01 99.01 50920 | 1 0.01 99.02 51175 | 1 0.01 99.03 51340 | 15 0.15 99.18 52023 | 3 0.03 99.21 52650 | 29 0.29 99.50 52720 | 2 0.02 99.52 53175 | 9 0.09 99.61 53445 | 1 0.01 99.62 53915 | 1 0.01 99.63 54094 | 4 0.04 99.67 54455 | 4 0.04 99.71 54595 | 4 0.04 99.75 54890 | 8 0.08 99.83 54960 | 2 0.02 99.85 55115 | 1 0.01 99.86 55315 | 2 0.02 99.88 55521 | 1 0.01 99.89 55710 | 3 0.03 99.92 55925 | 2 0.02 99.94 55997 | 2 0.02 99.96 57033 | 3 0.03 99.99 80007 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016