Frequencies for first 10,000 rows of ca_hypo variable in natlterr2008 dataset :

Hypospadias |
        RFP |
646=f_ca_hy |
      pos R |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,061       60.61       60.61
          N |      3,936       39.36       99.97
          Y |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 May 2016