Frequencies for classification variable in enfrep20160406 dataset : Classificat | ion | Freq. Percent Cum. ------------+----------------------------------- Class I | 9 7.96 7.96 Class II | 89 78.76 86.73 Class III | 15 13.27 100.00 ------------+----------------------------------- Total | 113 100.00 by Jean Roth , jroth@nber.org , 21 Jul 2016