Frequencies for first 10,000 rows of drg4ing3 variable in namcs1993 dataset : ingredient | code #3 for | medication | #4 | Freq. Percent Cum. ------------+----------------------------------- | 9,960 99.60 99.60 50745 | 6 0.06 99.66 51340 | 1 0.01 99.67 51670 | 1 0.01 99.68 53175 | 1 0.01 99.69 53780 | 1 0.01 99.70 53895 | 1 0.01 99.71 53915 | 1 0.01 99.72 54050 | 1 0.01 99.73 54400 | 1 0.01 99.74 54455 | 2 0.02 99.76 54465 | 3 0.03 99.79 54595 | 1 0.01 99.80 54890 | 1 0.01 99.81 54960 | 1 0.01 99.82 54995 | 5 0.05 99.87 55130 | 4 0.04 99.91 55240 | 5 0.05 99.96 55745 | 1 0.01 99.97 55910 | 1 0.01 99.98 56193 | 2 0.02 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016