Frequencies for first 10,000 rows of drg1ing4 variable in namcs1996 dataset : ingredient | code #4 for | medication | #1 | Freq. Percent Cum. ------------+----------------------------------- | 9,848 98.48 98.48 51340 | 2 0.02 98.50 53530 | 1 0.01 98.51 53640 | 3 0.03 98.54 54003 | 1 0.01 98.55 54465 | 5 0.05 98.60 54468 | 8 0.08 98.68 54595 | 2 0.02 98.70 54713 | 7 0.07 98.77 54895 | 3 0.03 98.80 54960 | 5 0.05 98.85 54995 | 2 0.02 98.87 55105 | 1 0.01 98.88 55180 | 9 0.09 98.97 55280 | 1 0.01 98.98 55494 | 1 0.01 98.99 55645 | 1 0.01 99.00 55710 | 36 0.36 99.36 55745 | 2 0.02 99.38 55755 | 51 0.51 99.89 55770 | 1 0.01 99.90 56161 | 1 0.01 99.91 56185 | 2 0.02 99.93 56193 | 1 0.01 99.94 56194 | 3 0.03 99.97 56265 | 3 0.03 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016