Frequencies for first 10,000 rows of fuel variable in vindecode dataset : (fuel) what | an internal | combustion | burns to | move a | piston in a | cylinder | Freq. Percent Cum. ------------+----------------------------------- | 1,958 19.58 19.58 B | 118 1.18 20.76 C | 4 0.04 20.80 D | 958 9.58 30.38 E | 4 0.04 30.42 F | 418 4.18 34.60 G | 6,529 65.29 99.89 N | 8 0.08 99.97 U | 1 0.01 99.98 Y | 2 0.02 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Oct 2016