Frequencies for first 10,000 rows of drugid21 variable in namcs2015 dataset : Drug ID for | medication | #21 | Freq. Percent Cum. ------------+----------------------------------- | 9,953 99.53 99.53 a11703 | 1 0.01 99.54 d00022 | 1 0.01 99.55 d00049 | 1 0.01 99.56 d00059 | 1 0.01 99.57 d00069 | 1 0.01 99.58 d00141 | 1 0.01 99.59 d00168 | 1 0.01 99.60 d00170 | 1 0.01 99.61 d00242 | 1 0.01 99.62 d00278 | 1 0.01 99.63 d00293 | 1 0.01 99.64 d00321 | 1 0.01 99.65 d00325 | 1 0.01 99.66 d00413 | 3 0.03 99.69 d00426 | 1 0.01 99.70 d00732 | 1 0.01 99.71 d00749 | 2 0.02 99.73 d00787 | 1 0.01 99.74 d00880 | 1 0.01 99.75 d00967 | 1 0.01 99.76 d00992 | 1 0.01 99.77 d01015 | 1 0.01 99.78 d01021 | 1 0.01 99.79 d01423 | 1 0.01 99.80 d03128 | 1 0.01 99.81 d03129 | 4 0.04 99.85 d03182 | 1 0.01 99.86 d03221 | 1 0.01 99.87 d03428 | 2 0.02 99.89 d03826 | 1 0.01 99.90 d03849 | 1 0.01 99.91 d04048 | 1 0.01 99.92 d04052 | 1 0.01 99.93 d04102 | 1 0.01 99.94 d04242 | 1 0.01 99.95 d04284 | 1 0.01 99.96 d04753 | 1 0.01 99.97 d04824 | 1 0.01 99.98 d05702 | 1 0.01 99.99 d06720 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 25 Oct 2017