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

    Roadway |
    Surface |
  Condition |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      8,913       89.13       89.13
          2 |        881        8.81       97.94
          3 |         53        0.53       98.47
          4 |         67        0.67       99.14
          5 |         35        0.35       99.49
          8 |         23        0.23       99.72
          9 |         28        0.28      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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