Frequencies for first 10,000 rows of drg4ing1 variable in namcs1999 dataset : ingredient | code #1 for | medication | #4 | Freq. Percent Cum. ------------+----------------------------------- | 9,911 99.11 99.11 50000 | 1 0.01 99.12 50005 | 10 0.10 99.22 50088 | 5 0.05 99.27 50145 | 1 0.01 99.28 50260 | 3 0.03 99.31 50325 | 2 0.02 99.33 50410 | 3 0.03 99.36 50450 | 1 0.01 99.37 50498 | 2 0.02 99.39 50899 | 1 0.01 99.40 51130 | 2 0.02 99.42 51345 | 1 0.01 99.43 51382 | 1 0.01 99.44 51647 | 1 0.01 99.45 52075 | 5 0.05 99.50 52450 | 8 0.08 99.58 52490 | 4 0.04 99.62 52645 | 8 0.08 99.70 52650 | 1 0.01 99.71 52990 | 6 0.06 99.77 53255 | 2 0.02 99.79 53780 | 8 0.08 99.87 53805 | 2 0.02 99.89 54455 | 1 0.01 99.90 54915 | 2 0.02 99.92 55525 | 1 0.01 99.93 55555 | 2 0.02 99.95 56345 | 1 0.01 99.96 80004 | 4 0.04 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016