Frequencies for first 10,000 rows of exercise variable in nhamcsopd1999 dataset :

   exercise |
 couns/educ |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,174       91.74       91.74
          1 |        826        8.26      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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