Frequencies for first 10,000 rows of prov1715 variable in pos1992 dataset :

   director |
qualificati |
        ons |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,859       98.59       98.59
          1 |         88        0.88       99.47
          2 |          1        0.01       99.48
          3 |          4        0.04       99.52
          4 |          8        0.08       99.60
          5 |         40        0.40      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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