Frequencies for first 10,000 rows of drg4ing1 variable in namcs2002 dataset : Ingredient | code #1 for | medication | #4 | Freq. Percent Cum. ------------+----------------------------------- | 9,880 98.80 98.80 50005 | 24 0.24 99.04 50418 | 1 0.01 99.05 50498 | 3 0.03 99.08 50550 | 1 0.01 99.09 51670 | 3 0.03 99.12 51910 | 3 0.03 99.15 52045 | 1 0.01 99.16 52070 | 1 0.01 99.17 52075 | 7 0.07 99.24 52354 | 5 0.05 99.29 52447 | 4 0.04 99.33 52450 | 1 0.01 99.34 52490 | 4 0.04 99.38 52548 | 2 0.02 99.40 52645 | 18 0.18 99.58 52883 | 4 0.04 99.62 53720 | 1 0.01 99.63 53723 | 1 0.01 99.64 53780 | 13 0.13 99.77 53875 | 1 0.01 99.78 53915 | 1 0.01 99.79 54260 | 1 0.01 99.80 54960 | 1 0.01 99.81 55555 | 1 0.01 99.82 56185 | 1 0.01 99.83 56193 | 2 0.02 99.85 56261 | 1 0.01 99.86 56345 | 1 0.01 99.87 57186 | 1 0.01 99.88 70027 | 2 0.02 99.90 70212 | 2 0.02 99.92 70217 | 1 0.01 99.93 70226 | 1 0.01 99.94 70256 | 2 0.02 99.96 70257 | 1 0.01 99.97 70402 | 2 0.02 99.99 70579 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016