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

    Roadway |
    Surface |
       Type |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        745        7.45        7.45
          2 |      8,324       83.24       90.69
          3 |          3        0.03       90.72
          4 |         83        0.83       91.55
          5 |        107        1.07       92.62
          8 |         35        0.35       92.97
          9 |        703        7.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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