Frequencies for first 10,000 rows of vin_5 variable in vehicle dataset :

      vin_5 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         37        0.37        0.37
          1 |         23        0.23        0.60
          2 |         22        0.22        0.82
          3 |         28        0.28        1.10
          4 |         46        0.46        1.56
          5 |         26        0.26        1.82
          6 |         11        0.11        1.93
          7 |         24        0.24        2.17
          8 |          6        0.06        2.23
          9 |        317        3.17        5.40
          A |        607        6.07       11.47
          B |        445        4.45       15.92
          C |        947        9.47       25.39
          D |        669        6.69       32.08
          E |        344        3.44       35.52
          F |        588        5.88       41.40
          G |        353        3.53       44.93
          H |        167        1.67       46.60
          J |        289        2.89       49.49
          K |        574        5.74       55.23
          L |        392        3.92       59.15
          M |        347        3.47       62.62
          N |        391        3.91       66.53
          P |        733        7.33       73.86
          R |        409        4.09       77.95
          S |        448        4.48       82.43
          T |        326        3.26       85.69
          U |        499        4.99       90.68
          V |        121        1.21       91.89
          W |        237        2.37       94.26
          X |        351        3.51       97.77
          Y |        122        1.22       98.99
          Z |        101        1.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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