Frequencies for first 10,000 rows of drg4ing1 variable in namcs1996 dataset : ingredient | code #1 for | medication | #4 | Freq. Percent Cum. ------------+----------------------------------- | 9,793 97.93 97.93 50000 | 3 0.03 97.96 50005 | 45 0.45 98.41 50025 | 2 0.02 98.43 50145 | 6 0.06 98.49 50163 | 1 0.01 98.50 50182 | 3 0.03 98.53 50230 | 1 0.01 98.54 50260 | 3 0.03 98.57 50275 | 1 0.01 98.58 50325 | 1 0.01 98.59 50410 | 4 0.04 98.63 50418 | 1 0.01 98.64 50420 | 2 0.02 98.66 50440 | 1 0.01 98.67 50450 | 2 0.02 98.69 50498 | 1 0.01 98.70 50550 | 2 0.02 98.72 50585 | 3 0.03 98.75 50745 | 2 0.02 98.77 50770 | 3 0.03 98.80 50806 | 1 0.01 98.81 50899 | 4 0.04 98.85 50933 | 2 0.02 98.87 51130 | 5 0.05 98.92 51170 | 1 0.01 98.93 51340 | 9 0.09 99.02 51635 | 1 0.01 99.03 51638 | 1 0.01 99.04 51670 | 2 0.02 99.06 51903 | 1 0.01 99.07 51910 | 1 0.01 99.08 51935 | 1 0.01 99.09 52028 | 1 0.01 99.10 52035 | 4 0.04 99.14 52045 | 3 0.03 99.17 52075 | 2 0.02 99.19 52318 | 1 0.01 99.20 52450 | 1 0.01 99.21 52490 | 7 0.07 99.28 52615 | 2 0.02 99.30 52645 | 32 0.32 99.62 52655 | 3 0.03 99.65 52990 | 1 0.01 99.66 53003 | 1 0.01 99.67 53255 | 3 0.03 99.70 53780 | 14 0.14 99.84 53895 | 1 0.01 99.85 53995 | 2 0.02 99.87 54455 | 1 0.01 99.88 54960 | 1 0.01 99.89 55525 | 2 0.02 99.91 55555 | 6 0.06 99.97 56193 | 3 0.03 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016