Frequencies for first 10,000 rows of drg4ing3 variable in namcs1995 dataset : ingredient | code #3 for | medication | #4 | Freq. Percent Cum. ------------+----------------------------------- | 9,974 99.74 99.74 50745 | 4 0.04 99.78 52045 | 1 0.01 99.79 52908 | 2 0.02 99.81 53020 | 1 0.01 99.82 53720 | 1 0.01 99.83 53895 | 2 0.02 99.85 53915 | 1 0.01 99.86 54455 | 1 0.01 99.87 54465 | 2 0.02 99.89 54595 | 1 0.01 99.90 54995 | 2 0.02 99.92 55105 | 2 0.02 99.94 55240 | 3 0.03 99.97 55955 | 1 0.01 99.98 56192 | 2 0.02 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016