Frequencies for first 10,000 rows of me_rout variable in natlterr2014 dataset : Final Route | & Method of | Delivery 1 | Spontaneous | Freq. Percent Cum. ------------+----------------------------------- | 1,077 10.77 10.77 1 | 5,411 54.11 64.88 2 | 34 0.34 65.22 3 | 85 0.85 66.07 4 | 3,233 32.33 98.40 9 | 160 1.60 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 15 Jun 2016