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

    SURFACE |
  CONDITION |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      8,957       89.57       89.57
          2 |        804        8.04       97.61
          3 |         46        0.46       98.07
          4 |         66        0.66       98.73
          5 |         27        0.27       99.00
          6 |          8        0.08       99.08
          7 |          2        0.02       99.10
          8 |          7        0.07       99.17
          9 |         83        0.83      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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