Frequencies for producttype variable in enfrep20130807 dataset : Product | Type | Freq. Percent Cum. ------------+----------------------------------- Biologics | 54 39.42 39.42 Cosmetics | 3 2.19 41.61 Devices | 41 29.93 71.53 Drugs | 7 5.11 76.64 Food | 32 23.36 100.00 ------------+----------------------------------- Total | 137 100.00 by Jean Roth , jroth@nber.org , 18 Dec 2015