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

      State |
     Number |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,217       12.17       12.17
          2 |         92        0.92       13.09
          4 |      1,120       11.20       24.29
          5 |        737        7.37       31.66
          6 |      3,786       37.86       69.52
          8 |        587        5.87       75.39
          9 |        293        2.93       78.32
         10 |        141        1.41       79.73
         11 |         29        0.29       80.02
         12 |      1,998       19.98      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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