Frequencies for first 10,000 rows of fire_exp variable in person dataset : Fire | Occurrence | Freq. Percent Cum. ------------+----------------------------------- 0 | 8,964 89.64 89.64 1 | 290 2.90 92.54 . | 746 7.46 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016