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

    Roadway |
    Surface |
       Type |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        848        8.48        8.48
          2 |      8,874       88.74       97.22
          3 |          6        0.06       97.28
          4 |        102        1.02       98.30
          5 |        129        1.29       99.59
          8 |          9        0.09       99.68
          9 |         32        0.32      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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