Frequencies for first 10,000 rows of n_mot_no variable in person dataset : STRIKING | VEHICLE | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,275 92.75 92.75 1 | 721 7.21 99.96 2 | 4 0.04 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016