Frequencies for first 10,000 rows of profile variable in accident dataset : ROADWAY | PROFILE | Freq. Percent Cum. ------------+----------------------------------- 1 | 7,404 74.04 74.04 2 | 2,230 22.30 96.34 3 | 172 1.72 98.06 4 | 24 0.24 98.30 9 | 170 1.70 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016