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

    Roadway |
    Surface |
       Type |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        970        9.70        9.70
          2 |      8,738       87.38       97.08
          3 |          4        0.04       97.12
          4 |         99        0.99       98.11
          5 |        127        1.27       99.38
          8 |         11        0.11       99.49
          9 |         51        0.51      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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