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

  Number of |
     Travel |
      Lanes |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        109        1.09        1.09
          2 |      7,436       74.36       75.45
          3 |        651        6.51       81.96
          4 |      1,459       14.59       96.55
          5 |         96        0.96       97.51
          6 |        170        1.70       99.21
          7 |         12        0.12       99.33
          9 |         67        0.67      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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