Frequencies for first 10,000 rows of drg1ing4 variable in namcs1995 dataset : ingredient | code #4 for | medication | #1 | Freq. Percent Cum. ------------+----------------------------------- | 9,907 99.07 99.07 51340 | 1 0.01 99.08 53640 | 3 0.03 99.11 53905 | 1 0.01 99.12 54238 | 1 0.01 99.13 54455 | 1 0.01 99.14 54468 | 8 0.08 99.22 54595 | 6 0.06 99.28 54710 | 1 0.01 99.29 54713 | 1 0.01 99.30 54960 | 1 0.01 99.31 54995 | 5 0.05 99.36 55105 | 2 0.02 99.38 55180 | 9 0.09 99.47 55210 | 1 0.01 99.48 55710 | 7 0.07 99.55 55755 | 25 0.25 99.80 56020 | 2 0.02 99.82 56193 | 13 0.13 99.95 56194 | 1 0.01 99.96 56265 | 4 0.04 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016