Frequencies for first 10,000 rows of primaryreason variable in nadacc20170419 dataset :

Primary Reason |      Freq.     Percent        Cum.
---------------+-----------------------------------
     Help Desk |          4        0.04        0.04
   Survey Rate |      9,989       99.89       99.93
WAC Adjustment |          7        0.07      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 10 Feb 2018