Frequencies for first 10,000 rows of ffoptype variable in h126f dataset :

   FLAT FEE |
     BUNDLE |      Freq.     Percent        Cum.
------------+-----------------------------------
         -1 |      9,819       98.19       98.19
          1 |         59        0.59       98.78
          2 |        122        1.22      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Feb 2018