Frequencies for first 10,000 rows of vin_3 variable in vehicle dataset :

      vin_3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        213        2.13        2.13
          1 |      1,335       13.35       15.48
          2 |        916        9.16       24.64
          3 |        873        8.73       33.37
          4 |      1,038       10.38       43.75
          5 |        212        2.12       45.87
          6 |        503        5.03       50.90
          7 |        228        2.28       53.18
          8 |        225        2.25       55.43
          9 |        447        4.47       59.90
          A |        745        7.45       67.35
          B |        130        1.30       68.65
          C |        461        4.61       73.26
          D |        203        2.03       75.29
          E |        160        1.60       76.89
          F |         51        0.51       77.40
          G |        129        1.29       78.69
          H |         91        0.91       79.60
          I |          1        0.01       79.61
          J |         31        0.31       79.92
          K |        107        1.07       80.99
          L |        122        1.22       82.21
          M |        459        4.59       86.80
          N |        176        1.76       88.56
          O |          3        0.03       88.59
          P |         92        0.92       89.51
          Q |          2        0.02       89.53
          R |         26        0.26       89.79
          S |         87        0.87       90.66
          T |        566        5.66       96.32
          U |        150        1.50       97.82
          V |         67        0.67       98.49
          W |         55        0.55       99.04
          X |         51        0.51       99.55
          Y |         36        0.36       99.91
          Z |          9        0.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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