Frequencies for first 10,000 rows of deformed variable in vehicle dataset : deformation | Freq. Percent Cum. ------------+----------------------------------- 0 | 204 2.04 2.04 2 | 778 7.78 9.82 4 | 1,221 12.21 22.03 6 | 7,332 73.32 95.35 9 | 465 4.65 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016