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

    Roadway |
    Surface |
       Type |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        971        9.71        9.71
          2 |      8,724       87.24       96.95
          3 |          8        0.08       97.03
          4 |        104        1.04       98.07
          5 |        155        1.55       99.62
          8 |          2        0.02       99.64
          9 |         36        0.36      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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