Frequencies for first 10,000 rows of vin_12 variable in vehicle dataset :

        vin |
character(1 |
         2) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         47        0.47        0.47
          0 |      1,769       17.69       18.16
          1 |      1,952       19.52       37.68
          2 |      1,278       12.78       50.46
          3 |        698        6.98       57.44
          4 |        463        4.63       62.07
          5 |        730        7.30       69.37
          6 |        555        5.55       74.92
          7 |        340        3.40       78.32
          8 |        228        2.28       80.60
          9 |        588        5.88       86.48
          A |        473        4.73       91.21
          B |        279        2.79       94.00
          C |        161        1.61       95.61
          D |         66        0.66       96.27
          E |         28        0.28       96.55
          F |         43        0.43       96.98
          G |         41        0.41       97.39
          H |         10        0.10       97.49
          J |         48        0.48       97.97
          K |          9        0.09       98.06
          L |         15        0.15       98.21
          M |         43        0.43       98.64
          N |         15        0.15       98.79
          P |         10        0.10       98.89
          R |          7        0.07       98.96
          S |         16        0.16       99.12
          T |          9        0.09       99.21
          U |         16        0.16       99.37
          V |         12        0.12       99.49
          W |         11        0.11       99.60
          X |         13        0.13       99.73
          Y |         12        0.12       99.85
          Z |         15        0.15      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016