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

        VIN |
Character(3 |
          ) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         33        0.33        0.33
          1 |      1,126       11.26       11.59
          2 |        521        5.21       16.80
          3 |        500        5.00       21.80
          4 |        810        8.10       29.90
          5 |         35        0.35       30.25
          6 |        220        2.20       32.45
          7 |        268        2.68       35.13
          8 |        263        2.63       37.76
          9 |        374        3.74       41.50
          A |        756        7.56       49.06
          B |        198        1.98       51.04
          C |        447        4.47       55.51
          D |        621        6.21       61.72
          E |        205        2.05       63.77
          F |         74        0.74       64.51
          G |        411        4.11       68.62
          H |        135        1.35       69.97
          J |         38        0.38       70.35
          K |        273        2.73       73.08
          L |         80        0.80       73.88
          M |        537        5.37       79.25
          N |        491        4.91       84.16
          P |        131        1.31       85.47
          R |         24        0.24       85.71
          S |         70        0.70       86.41
          T |        733        7.33       93.74
          U |        239        2.39       96.13
          V |         80        0.80       96.93
          W |        119        1.19       98.12
          X |        114        1.14       99.26
          Y |         40        0.40       99.66
          Z |         34        0.34      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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