Frequencies for first 10,000 rows of prov0555 variable in pos1999 dataset :

       aide |
training/co |
   mpetency |
   programs |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,942       89.42       89.42
          1 |         16        0.16       89.58
          2 |        498        4.98       94.56
          3 |        200        2.00       96.56
          4 |        344        3.44      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016