Frequencies for first 10,000 rows of exercise variable in nhamcsopd1997 dataset :

   exercise |
 couns/educ |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,983       89.83       89.83
          1 |      1,017       10.17      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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