Frequencies for first 10,000 rows of dose_unit variable in drug2017q2 dataset : Unit of | drug dose | Freq. Percent Cum. ------------+----------------------------------- | 4,641 46.41 46.41 DF | 326 3.26 49.67 G | 109 1.09 50.76 GTT | 17 0.17 50.93 IU | 67 0.67 51.60 KG | 1 0.01 51.61 L | 1 0.01 51.62 MBQ | 2 0.02 51.64 MEQ | 6 0.06 51.70 MG | 4,360 43.60 95.30 MG/KG | 68 0.68 95.98 MG/M**2 | 188 1.88 97.86 MIU | 4 0.04 97.90 ML | 35 0.35 98.25 MMOL | 1 0.01 98.26 NG | 1 0.01 98.27 PCT | 16 0.16 98.43 UG | 153 1.53 99.96 UG/KG | 4 0.04 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 8 Feb 2018