Frequencies for first 10,000 rows of drctr_qualn_cd variable in pos2003 dataset :

   director |
qualificati |
        ons |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,945       99.45       99.45
          1 |         28        0.28       99.73
          2 |          2        0.02       99.75
          3 |          2        0.02       99.77
          4 |          6        0.06       99.83
          5 |         17        0.17      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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