Frequencies for classification variable in enfrep20140507 dataset :

Classificat |
        ion |      Freq.     Percent        Cum.
------------+-----------------------------------
    Class I |         20       16.67       16.67
   Class II |         81       67.50       84.17
  Class III |         19       15.83      100.00
------------+-----------------------------------
      Total |        120      100.00

by Jean Roth , jroth@nber.org , 18 Dec 2015