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

      state |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,368       13.68       13.68
          2 |        125        1.25       14.93
          4 |      1,367       13.67       28.60
          5 |        853        8.53       37.13
          6 |      5,123       51.23       88.36
          8 |        933        9.33       97.69
          9 |        231        2.31      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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