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

  Number of |
     Travel |
      Lanes |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        143        1.43        1.43
          2 |      6,945       69.45       70.88
          3 |        588        5.88       76.76
          4 |      1,727       17.27       94.03
          5 |        166        1.66       95.69
          6 |        144        1.44       97.13
          7 |          9        0.09       97.22
          9 |        278        2.78      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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