Frequencies for first 10,000 rows of cholred variable in namcs1996 dataset :

cholesterol |
  reduction |
 couns/educ |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,651       96.51       96.51
          1 |        349        3.49      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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