Frequencies for first 10,000 rows of sp_jur variable in accident dataset : special | jurisdictio | n | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,878 98.78 98.78 1 | 18 0.18 98.96 2 | 2 0.02 98.98 3 | 99 0.99 99.97 4 | 1 0.01 99.98 8 | 1 0.01 99.99 9 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Oct 2016