Frequencies for first 10,000 rows of region variable in nhamcsed2002 dataset : geographic | region | Freq. Percent Cum. ------------+----------------------------------- Northeast | 6,032 60.32 60.32 Midwest | 2,932 29.32 89.64 South | 820 8.20 97.84 West | 216 2.16 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016