Frequencies for first 10,000 rows of I25d variable in morg79 dataset :

   (dp) Usl |
    Earn/hr |
     (I25d) |
 allocation |
       flag |      Freq.     Percent        Cum.
------------+-----------------------------------
  No Change |      9,127       91.27       91.27
  Allocated |        873        8.73      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 15 Mar 2017