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

   CONTROLS |
FUNCTIONING |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,069       70.69       70.69
          1 |          9        0.09       70.78
          2 |          9        0.09       70.87
          3 |      2,818       28.18       99.05
          9 |         95        0.95      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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