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

      state |
     number |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,183       11.83       11.83
          2 |         88        0.88       12.71
          4 |      1,241       12.41       25.12
          5 |        733        7.33       32.45
          6 |      4,417       44.17       76.62
          8 |        789        7.89       84.51
          9 |        374        3.74       88.25
         10 |        191        1.91       90.16
         11 |         30        0.30       90.46
         12 |        954        9.54      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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