Frequencies for first 10,000 rows of ca_hypo variable in natlterr2006 dataset : Hypospadias | RFP | 646=f_ca_hy | pos R | Freq. Percent Cum. ------------+----------------------------------- | 6,275 62.75 62.75 N | 3,725 37.25 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Dec 2015