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

   CONTROLS |
FUNCTIONING |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,579       65.79       65.79
          1 |         17        0.17       65.96
          2 |          4        0.04       66.00
          3 |      3,381       33.81       99.81
          9 |         19        0.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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