Frequencies for first 10,000 rows of skin variable in namcs2015 dataset :

  Skin exam |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,617       76.17       76.17
          1 |      2,383       23.83      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 25 Oct 2017