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

    ROADWAY |
    SURFACE |
       TYPE |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        803        8.03        8.03
          2 |      8,954       89.54       97.57
          4 |         67        0.67       98.24
          5 |        109        1.09       99.33
          8 |          4        0.04       99.37
          9 |         63        0.63      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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