Frequencies for first 10,000 rows of erange variable in namcs2006 dataset :

   if yes, are |
  out of range |
        levels |
  highlighted? |      Freq.     Percent        Cum.
---------------+-----------------------------------
           yes |      1,737       17.37       17.37
            no |         92        0.92       18.29
       unknown |         35        0.35       18.64
not applicable |      7,679       76.79       95.43
         blank |        457        4.57      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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