Frequencies for first 10,000 rows of vin_1 variable in vehicle dataset :

      vin_1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         68        0.68        0.68
          1 |      4,003       40.03       40.71
          2 |        552        5.52       46.23
          3 |        251        2.51       48.74
          4 |        177        1.77       50.51
          5 |         71        0.71       51.22
          6 |        138        1.38       52.60
          7 |         66        0.66       53.26
          8 |         91        0.91       54.17
          9 |        570        5.70       59.87
          A |         62        0.62       60.49
          B |         46        0.46       60.95
          C |        395        3.95       64.90
          D |         42        0.42       65.32
          E |         68        0.68       66.00
          F |        228        2.28       68.28
          G |         44        0.44       68.72
          H |        114        1.14       69.86
          J |      2,063       20.63       90.49
          K |        153        1.53       92.02
          L |         17        0.17       92.19
          M |         20        0.20       92.39
          N |         16        0.16       92.55
          P |         38        0.38       92.93
          R |        148        1.48       94.41
          S |        121        1.21       95.62
          T |        130        1.30       96.92
          U |         27        0.27       97.19
          V |         58        0.58       97.77
          W |        173        1.73       99.50
          X |          6        0.06       99.56
          Y |         28        0.28       99.84
          Z |         16        0.16      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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