Frequencies for classification variable in enfrep20150610 dataset :

Classificat |
        ion |      Freq.     Percent        Cum.
------------+-----------------------------------
    Class I |         30       30.93       30.93
   Class II |         60       61.86       92.78
  Class III |          7        7.22      100.00
------------+-----------------------------------
      Total |         97      100.00

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