Frequencies for first 10,000 rows of to_mfr variable in demo2006q4 dataset :

    Whether |
      (Y/N) |
  voluntary |
   reporter |
       also |
   notified |
manufacture |
   r (blank |
        for |
  manufactu |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,020       90.20       90.20
          N |        879        8.79       98.99
          Y |        101        1.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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