Frequencies for first 10,000 rows of cebvd variable in namcs2012 dataset :

       Does |
patient now |
      have: |
Cerebrovasc |
       ular |
    disease |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,779       97.79       97.79
        Yes |        221        2.21      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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