Frequencies for first 10,000 rows of vin_6 variable in vehicle dataset :

        VIN |
Character(6 |
          ) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          4        0.04        0.04
          0 |        425        4.25        4.29
          1 |      2,409       24.09       28.38
          2 |      1,140       11.40       39.78
          3 |        935        9.35       49.13
          4 |        865        8.65       57.78
          5 |      1,396       13.96       71.74
          6 |        572        5.72       77.46
          7 |        500        5.00       82.46
          8 |        291        2.91       85.37
          9 |        542        5.42       90.79
          A |        130        1.30       92.09
          B |        164        1.64       93.73
          C |         77        0.77       94.50
          D |         50        0.50       95.00
          E |         43        0.43       95.43
          F |         25        0.25       95.68
          G |         20        0.20       95.88
          H |         22        0.22       96.10
          J |         35        0.35       96.45
          K |         16        0.16       96.61
          L |         33        0.33       96.94
          M |         41        0.41       97.35
          N |         15        0.15       97.50
          P |         17        0.17       97.67
          R |         42        0.42       98.09
          S |         46        0.46       98.55
          T |         16        0.16       98.71
          U |         19        0.19       98.90
          V |         17        0.17       99.07
          W |         26        0.26       99.33
          X |         32        0.32       99.65
          Y |         12        0.12       99.77
          Z |         23        0.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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