Frequencies for first 10,000 rows of region variable in nhamcsed2014 dataset : Geographic | region | Freq. Percent Cum. ------------+----------------------------------- Northeast | 2,976 29.76 29.76 Midwest | 2,580 25.80 55.56 South | 2,113 21.13 76.69 West | 2,331 23.31 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 11 Apr 2017