Frequencies for type variable in fhouse2002 dataset :

    type of |
     format |      Freq.     Percent        Cum.
------------+-----------------------------------
          C |         13       14.13       14.13
          N |         79       85.87      100.00
------------+-----------------------------------
      Total |         92      100.00

by Jean Roth , jroth@nber.org , 10 May 2016