Frequencies for first 10,000 rows of prov0555 variable in pos1997 dataset :

       aide |
training/co |
   mpetency |
   programs |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,008       90.08       90.08
          1 |         17        0.17       90.25
          2 |        460        4.60       94.85
          3 |        208        2.08       96.93
          4 |        307        3.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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