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

       does |
patient now |
     have - |
cerebrovasc |
ular diseas |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,823       98.23       98.23
        Yes |        177        1.77      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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