Frequencies for first 10,000 rows of supchrgr_t variable in vindecode dataset : indicates if the engine has a | supercharger or not. yes, no | or unknown. | Freq. Percent Cum. ------------------------------+----------------------------------- | 7,789 77.89 77.89 No | 2,188 21.88 99.77 Yes | 23 0.23 100.00 ------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Oct 2016