Frequencies for cred_tbx variable in fmli132 dataset :

   cred_tbx |      Freq.     Percent        Cum.
------------+-----------------------------------
          A |      6,686       98.88       98.88
          B |         40        0.59       99.47
          D |         36        0.53      100.00
------------+-----------------------------------
      Total |      6,762      100.00

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