Frequencies for first 10,000 rows of skin variable in namcs2013 dataset :

  Skin exam |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      8,744       87.44       87.44
        Yes |      1,256       12.56      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017