Frequencies for first 10,000 rows of erangee variable in nhamcsed2007 dataset :

   if yes, are |
  out of range |
        levels |
  highlighted? |      Freq.     Percent        Cum.
---------------+-----------------------------------
         blank |        103        1.03        1.03
       unknown |        478        4.78        5.81
not applicable |        869        8.69       14.50
           yes |      8,232       82.32       96.82
            no |        318        3.18      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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