Frequencies for vin_5 variable in vehicle dataset :

      vin_5 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         20        3.18        3.18
          1 |         19        3.02        6.20
          2 |          4        0.64        6.84
          3 |         11        1.75        8.59
          4 |          7        1.11        9.70
          5 |         10        1.59       11.29
          6 |          4        0.64       11.92
          7 |          7        1.11       13.04
          8 |          5        0.79       13.83
          9 |         89       14.15       27.98
          A |         52        8.27       36.25
          B |         49        7.79       44.04
          C |         28        4.45       48.49
          D |         28        4.45       52.94
          E |         49        7.79       60.73
          F |         42        6.68       67.41
          G |         14        2.23       69.63
          H |         29        4.61       74.24
          I |          1        0.16       74.40
          J |          7        1.11       75.52
          K |         14        2.23       77.74
          L |         19        3.02       80.76
          M |          9        1.43       82.19
          N |         10        1.59       83.78
          P |         15        2.38       86.17
          Q |          2        0.32       86.49
          R |         14        2.23       88.71
          S |         11        1.75       90.46
          T |         16        2.54       93.00
          U |         10        1.59       94.59
          V |         14        2.23       96.82
          W |          8        1.27       98.09
          X |          7        1.11       99.21
          Y |          2        0.32       99.52
          Z |          3        0.48      100.00
------------+-----------------------------------
      Total |        629      100.00

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