Frequencies for first 10,000 rows of tkaxlef variable in vindecode dataset : (axle- | type, front | axle) the | location of | the front | axle of a | truck | tractor. | set | Freq. Percent Cum. ------------+----------------------------------- | 5,916 59.16 59.16 N | 2,300 23.00 82.16 SB | 148 1.48 83.64 SF | 11 0.11 83.75 U | 1,625 16.25 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Oct 2016