Frequencies for first 10,000 rows of cholest variable in nhamcsopd2006 dataset :

lipids/chol |
    esterol |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,652       96.52       96.52
        Yes |        348        3.48      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016