Frequencies for first 10,000 rows of prov1715 variable in pos1995 dataset :

   director |
qualificati |
        ons |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,960       99.60       99.60
          1 |         25        0.25       99.85
          2 |          1        0.01       99.86
          4 |          4        0.04       99.90
          5 |         10        0.10      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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