Frequencies for defb_nrp variable in fmli132 dataset :

   defb_nrp |      Freq.     Percent        Cum.
------------+-----------------------------------
          A |      5,016       74.18       74.18
          C |        165        2.44       76.62
          D |      1,581       23.38      100.00
------------+-----------------------------------
      Total |      6,762      100.00

by Jean Roth , jroth@nber.org , 17 Mar 2016