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

      light |
  condition |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      4,507       45.07       45.07
          2 |      2,590       25.90       70.97
          3 |      2,306       23.06       94.03
          4 |        204        2.04       96.07
          5 |        261        2.61       98.68
          6 |         68        0.68       99.36
          7 |          1        0.01       99.37
          8 |         11        0.11       99.48
          9 |         52        0.52      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016