Frequencies for first 10,000 rows of vehtype_t variable in vindecode dataset : the description of | the polk assigned | code for the | vehicle type code. | Freq. Percent Cum. -------------------+----------------------------------- | 961 9.61 9.61 Motorcycle | 995 9.95 19.56 Passenger Car | 3,642 36.42 55.98 Truck | 4,402 44.02 100.00 -------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Oct 2016