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

   if yes, are |
   orders sent |
electronically |
             ? |      Freq.     Percent        Cum.
---------------+-----------------------------------
         blank |        203        2.03        2.03
       unknown |        281        2.81        4.84
not applicable |      5,444       54.44       59.28
           yes |      3,169       31.69       90.97
            no |        870        8.70       99.67
    turned off |         33        0.33      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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