Frequencies for first 10,000 rows of drctr_qualn_cd variable in pos2005 dataset :

   director |
qualificati |
        ons |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,939       99.39       99.39
          1 |         29        0.29       99.68
          2 |          2        0.02       99.70
          3 |          2        0.02       99.72
          4 |          7        0.07       99.79
          5 |         21        0.21      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017