Frequencies for first 10,000 rows of prov1715 variable in pos1993 dataset :

   director |
qualificati |
        ons |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,855       98.55       98.55
          1 |         89        0.89       99.44
          2 |          1        0.01       99.45
          3 |          4        0.04       99.49
          4 |         10        0.10       99.59
          5 |         41        0.41      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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