Frequencies for first 10,000 rows of state variable in vehicle dataset :

      state |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,366       13.66       13.66
          2 |        126        1.26       14.92
          4 |      1,052       10.52       25.44
          5 |        775        7.75       33.19
          6 |      5,639       56.39       89.58
          8 |        691        6.91       96.49
          9 |        351        3.51      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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