Frequencies for first 10,000 rows of drg4ing3 variable in namcs1997 dataset : ingredient | code #3 for | medication | #4 | Freq. Percent Cum. ------------+----------------------------------- | 9,973 99.73 99.73 50745 | 6 0.06 99.79 51670 | 1 0.01 99.80 52615 | 1 0.01 99.81 53175 | 6 0.06 99.87 54050 | 1 0.01 99.88 54395 | 1 0.01 99.89 54455 | 2 0.02 99.91 54465 | 1 0.01 99.92 54960 | 1 0.01 99.93 55105 | 2 0.02 99.95 55130 | 1 0.01 99.96 55140 | 1 0.01 99.97 55360 | 1 0.01 99.98 55610 | 1 0.01 99.99 55770 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016