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

    roadway |
    surface |
  condition |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         72        0.72        0.72
          1 |      8,845       88.45       89.17
          2 |        758        7.58       96.75
          3 |         38        0.38       97.13
          4 |        108        1.08       98.21
          5 |          1        0.01       98.22
          6 |         17        0.17       98.39
          8 |          1        0.01       98.40
         10 |         10        0.10       98.50
         11 |         23        0.23       98.73
         98 |         32        0.32       99.05
         99 |         95        0.95      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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