Frequencies for first 10,000 rows of sp_jur variable in accident dataset : Special | Jurisdictio | n | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,870 98.70 98.70 1 | 9 0.09 98.79 2 | 2 0.02 98.81 3 | 112 1.12 99.93 9 | 7 0.07 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016