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

cholesterol |
    measure |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,620       96.20       96.20
          1 |        380        3.80      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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