Frequencies for classification variable in enfrep20130529 dataset :

Classificat |
        ion |      Freq.     Percent        Cum.
------------+-----------------------------------
    Class I |         32       16.84       16.84
   Class II |        122       64.21       81.05
  Class III |         36       18.95      100.00
------------+-----------------------------------
      Total |        190      100.00

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