Frequencies for producttype variable in enfrep20160406 dataset : Product | Type | Freq. Percent Cum. ------------+----------------------------------- Biologics | 12 10.62 10.62 Devices | 52 46.02 56.64 Drugs | 19 16.81 73.45 Food | 28 24.78 98.23 Veterinary | 2 1.77 100.00 ------------+----------------------------------- Total | 113 100.00 by Jean Roth , jroth@nber.org , 21 Jul 2016