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

      vin_5 |      Freq.     Percent        Cum.
------------+-----------------------------------
          - |          1        0.01        0.01
          0 |         46        0.46        0.47
          1 |         27        0.27        0.74
          2 |         32        0.32        1.06
          3 |         20        0.20        1.26
          4 |         69        0.69        1.95
          5 |         16        0.16        2.11
          6 |         16        0.16        2.27
          7 |         15        0.15        2.42
          8 |          9        0.09        2.51
          9 |        331        3.31        5.82
          A |        627        6.27       12.09
          B |        463        4.63       16.72
          C |        948        9.48       26.20
          D |        664        6.64       32.84
          E |        356        3.56       36.40
          F |        527        5.27       41.67
          G |        360        3.60       45.27
          H |        170        1.70       46.97
          J |        329        3.29       50.26
          K |        543        5.43       55.69
          L |        360        3.60       59.29
          M |        349        3.49       62.78
          N |        375        3.75       66.53
          P |        708        7.08       73.61
          R |        408        4.08       77.69
          S |        512        5.12       82.81
          T |        311        3.11       85.92
          U |        519        5.19       91.11
          V |        119        1.19       92.30
          W |        243        2.43       94.73
          X |        349        3.49       98.22
          Y |         96        0.96       99.18
          Z |         82        0.82      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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