Frequencies for first 10,000 rows of to_mfr variable in demo2010q4 dataset :

    Whether |
      (Y/N) |
  voluntary |
   reporter |
       also |
   notified |
manufacture |
   r (blank |
        for |
  manufactu |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,567       95.67       95.67
          N |        383        3.83       99.50
          Y |         50        0.50      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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