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

  Number of |
     Travel |
      Lanes |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         70        0.70        0.70
          2 |      7,141       71.41       72.11
          3 |        583        5.83       77.94
          4 |      1,792       17.92       95.86
          5 |        128        1.28       97.14
          6 |        209        2.09       99.23
          7 |         10        0.10       99.33
          9 |         67        0.67      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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