Frequencies for vin_5 variable in vehicle dataset :

      vin_5 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         20        3.19        3.19
          1 |         10        1.60        4.79
          2 |          4        0.64        5.43
          4 |          2        0.32        5.75
          5 |          1        0.16        5.91
          6 |          3        0.48        6.39
          7 |          3        0.48        6.87
          9 |         69       11.02       17.89
          A |         32        5.11       23.00
          B |         26        4.15       27.16
          C |         46        7.35       34.50
          D |         33        5.27       39.78
          E |         40        6.39       46.17
          F |         35        5.59       51.76
          G |         21        3.35       55.11
          H |         12        1.92       57.03
          J |         30        4.79       61.82
          K |         10        1.60       63.42
          L |         28        4.47       67.89
          M |         10        1.60       69.49
          N |         12        1.92       71.41
          P |         29        4.63       76.04
          R |         40        6.39       82.43
          S |         18        2.88       85.30
          T |         20        3.19       88.50
          U |         19        3.04       91.53
          V |          7        1.12       92.65
          W |         12        1.92       94.57
          X |         15        2.40       96.96
          Y |         14        2.24       99.20
          Z |          5        0.80      100.00
------------+-----------------------------------
      Total |        626      100.00

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