Frequencies for first 10,000 rows of drunk_dr variable in accident dataset : DRUNK | DRIVERS | Freq. Percent Cum. ------------+----------------------------------- 0 | 7,215 72.15 72.15 1 | 2,685 26.85 99.00 2 | 97 0.97 99.97 3 | 3 0.03 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016