Frequencies for first 10,000 rows of t_cont_f variable in accident dataset :

   CONTROLS |
FUNCTIONING |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,985       69.85       69.85
          1 |          9        0.09       69.94
          2 |          8        0.08       70.02
          3 |      2,916       29.16       99.18
          9 |         82        0.82      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016