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

   CONTROLS |
FUNCTIONING |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,354       73.54       73.54
          1 |          9        0.09       73.63
          2 |          7        0.07       73.70
          3 |      2,540       25.40       99.10
          9 |         90        0.90      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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