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

   Cyanotic |
 Congenital |
      Heart |
Disease RFP |
637=f_ca_he |
      art R |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,061       60.61       60.61
          N |      3,938       39.38       99.99
          Y |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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