Frequencies for first 10,000 rows of profile variable in accident dataset : Roadway | Profile | Freq. Percent Cum. ------------+----------------------------------- 1 | 7,396 73.96 73.96 2 | 2,197 21.97 95.93 3 | 123 1.23 97.16 4 | 17 0.17 97.33 9 | 267 2.67 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016