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

      state |
     number |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,223       12.23       12.23
          2 |         83        0.83       13.06
          4 |      1,105       11.05       24.11
          5 |        749        7.49       31.60
          6 |      4,001       40.01       71.61
          8 |        637        6.37       77.98
          9 |        375        3.75       81.73
         10 |        146        1.46       83.19
         11 |         21        0.21       83.40
         12 |      1,660       16.60      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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