Frequencies for first 10,000 rows of towed variable in vehicle dataset : Vehicle | Removal | Freq. Percent Cum. ------------+----------------------------------- 1 | 1,300 13.00 13.00 2 | 7,271 72.71 85.71 3 | 1,164 11.64 97.35 4 | 45 0.45 97.80 8 | 100 1.00 98.80 9 | 120 1.20 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016