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

    SURFACE |
  CONDITION |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      8,697       86.97       86.97
          2 |      1,111       11.11       98.08
          3 |         45        0.45       98.53
          4 |         77        0.77       99.30
          5 |         28        0.28       99.58
          8 |         11        0.11       99.69
          9 |         31        0.31      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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