Frequencies for a_cdl_s variable in veh_aux dataset : CDL Status | Freq. Percent Cum. ------------+----------------------------------- 1 | 1 0.13 0.13 2 | 724 93.30 93.43 3 | 51 6.57 100.00 ------------+----------------------------------- Total | 776 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016