Frequencies for first 10,000 rows of erange variable in namcs2009 dataset :

   if yes, are |
  out of range |
        levels |
  highlighted? |      Freq.     Percent        Cum.
---------------+-----------------------------------
         blank |        209        2.09        2.09
       unknown |        425        4.25        6.34
not applicable |      4,112       41.12       47.46
           yes |      4,778       47.78       95.24
            no |        446        4.46       99.70
    turned off |         30        0.30      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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