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

    Roadway |
    Surface |
  Condition |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      8,417       84.17       84.17
          2 |      1,320       13.20       97.37
          3 |         64        0.64       98.01
          4 |         81        0.81       98.82
          5 |         70        0.70       99.52
          8 |         16        0.16       99.68
          9 |         32        0.32      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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