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

  Number of |
     Travel |
      Lanes |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         87        0.87        0.87
          2 |      7,059       70.59       71.46
          3 |        621        6.21       77.67
          4 |      1,791       17.91       95.58
          5 |        131        1.31       96.89
          8 |        216        2.16       99.05
          9 |         95        0.95      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Apr 2016