Frequencies for first 10,000 rows of prov1715 variable in pos1997 dataset :

   director |
qualificati |
        ons |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,824       98.24       98.24
          1 |        101        1.01       99.25
          2 |          1        0.01       99.26
          3 |          5        0.05       99.31
          4 |         19        0.19       99.50
          5 |         50        0.50      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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