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

      state |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,640       16.40       16.40
          2 |         94        0.94       17.34
          4 |      1,263       12.63       29.97
          5 |        859        8.59       38.56
          6 |      4,909       49.09       87.65
          8 |        813        8.13       95.78
          9 |        422        4.22      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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