Frequencies for first 10,000 rows of man_coll variable in vehicle dataset : Manner of | Collision | Freq. Percent Cum. ------------+----------------------------------- 0 | 4,576 45.76 45.76 1 | 821 8.21 53.97 2 | 1,962 19.62 73.59 4 | 2,344 23.44 97.03 5 | 190 1.90 98.93 6 | 106 1.06 99.99 9 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016