Frequencies for first 10,000 rows of vintype variable in person dataset : VIN Vehicle | Type | Freq. Percent Cum. ------------+----------------------------------- | 870 8.70 8.70 M | 582 5.82 14.52 P | 5,400 54.00 68.52 T | 2,687 26.87 95.39 U | 461 4.61 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Apr 2016