Frequencies for first 10,000 rows of muyear variable in namcs2013 dataset :

 When did you first |
   apply or when do |
you first intend to |
             apply? |      Freq.     Percent        Cum.
--------------------+-----------------------------------
              Blank |        266        2.66        2.66
            Unknown |        665        6.65        9.31
     Not applicable |      2,942       29.42       38.73
               2011 |      2,441       24.41       63.14
               2012 |      2,141       21.41       84.55
               2013 |      1,237       12.37       96.92
      2014 or later |        308        3.08      100.00
--------------------+-----------------------------------
              Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017