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

       RDWY |
   FUNCTION |
      CLASS |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        738        7.38        7.38
          2 |      1,110       11.10       18.48
          3 |      1,255       12.55       31.03
          4 |        846        8.46       39.49
          5 |        217        2.17       41.66
          6 |        668        6.68       48.34
          9 |         30        0.30       48.64
         11 |        694        6.94       55.58
         12 |        624        6.24       61.82
         13 |      1,698       16.98       78.80
         14 |      1,257       12.57       91.37
         15 |        393        3.93       95.30
         16 |        439        4.39       99.69
         19 |         19        0.19       99.88
         99 |         12        0.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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