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

       Limb |
  Reduction |
 Defect RFP |
641=f_ca_li |
       mb R |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,061       60.61       60.61
          N |      3,939       39.39      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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