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

    Roadway |
    Surface |
  Condition |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      8,773       87.73       87.73
          2 |        981        9.81       97.54
          3 |         48        0.48       98.02
          4 |         82        0.82       98.84
          5 |         48        0.48       99.32
          8 |         12        0.12       99.44
          9 |         56        0.56      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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