Frequencies for first 10,000 rows of vsurcond variable in vehicle dataset :

    roadway |
    surface |
  condition |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         75        0.75        0.75
          1 |      8,748       87.48       88.23
          2 |        796        7.96       96.19
          3 |         31        0.31       96.50
          4 |         76        0.76       97.26
          5 |          1        0.01       97.27
          6 |          7        0.07       97.34
          8 |          3        0.03       97.37
         10 |         14        0.14       97.51
         11 |         15        0.15       97.66
         98 |         40        0.40       98.06
         99 |        194        1.94      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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