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

    Roadway |
    surface |
  Condition |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         11        0.11        0.11
          1 |      8,674       86.74       86.85
          2 |      1,008       10.08       96.93
          3 |         25        0.25       97.18
          4 |         87        0.87       98.05
          5 |          2        0.02       98.07
          6 |          7        0.07       98.14
          7 |          2        0.02       98.16
          8 |          4        0.04       98.20
         10 |         18        0.18       98.38
         11 |         16        0.16       98.54
         98 |         27        0.27       98.81
         99 |        119        1.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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