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

      state |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,293       12.93       12.93
          2 |         91        0.91       13.84
          4 |      1,265       12.65       26.49
          5 |        784        7.84       34.33
          6 |      4,749       47.49       81.82
          8 |        713        7.13       88.95
          9 |        410        4.10       93.05
         10 |        153        1.53       94.58
         11 |         43        0.43       95.01
         12 |        499        4.99      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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