Frequencies for first 10,000 rows of prov1715 variable in pos2002 dataset :

   director |
qualificati |
        ons |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,946       99.46       99.46
          1 |         28        0.28       99.74
          2 |          2        0.02       99.76
          3 |          2        0.02       99.78
          4 |          6        0.06       99.84
          5 |         16        0.16      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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