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

    ROADWAY |
    SURFACE |
       TYPE |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        831        8.31        8.31
          2 |      8,917       89.17       97.48
          3 |          2        0.02       97.50
          4 |         91        0.91       98.41
          5 |        119        1.19       99.60
          8 |          6        0.06       99.66
          9 |         34        0.34      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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