Frequencies for first 10,000 rows of deformed variable in vehicle dataset : deformation | Freq. Percent Cum. ------------+----------------------------------- 0 | 237 2.37 2.37 2 | 785 7.85 10.22 4 | 1,283 12.83 23.05 6 | 7,203 72.03 95.08 9 | 492 4.92 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016