Frequencies for first 10,000 rows of sp_jur variable in accident dataset : Special | Jurisdictio | n | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,909 99.09 99.09 1 | 13 0.13 99.22 2 | 4 0.04 99.26 3 | 65 0.65 99.91 4 | 2 0.02 99.93 5 | 2 0.02 99.95 8 | 4 0.04 99.99 9 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Apr 2016