Frequencies for first 10,000 rows of vin_5 variable in vehicle dataset :

      vin_5 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        121        1.21        1.21
          1 |         53        0.53        1.74
          2 |         52        0.52        2.26
          3 |         69        0.69        2.95
          4 |        128        1.28        4.23
          5 |         52        0.52        4.75
          6 |         38        0.38        5.13
          7 |         59        0.59        5.72
          8 |         30        0.30        6.02
          9 |        393        3.93        9.95
          A |        534        5.34       15.29
          B |        492        4.92       20.21
          C |        766        7.66       27.87
          D |        817        8.17       36.04
          E |        305        3.05       39.09
          F |        512        5.12       44.21
          G |        298        2.98       47.19
          H |        253        2.53       49.72
          J |        265        2.65       52.37
          K |        409        4.09       56.46
          L |        340        3.40       59.86
          M |        361        3.61       63.47
          N |        453        4.53       68.00
          P |        921        9.21       77.21
          R |        418        4.18       81.39
          S |        399        3.99       85.38
          T |        288        2.88       88.26
          U |        338        3.38       91.64
          V |        184        1.84       93.48
          W |        150        1.50       94.98
          X |        249        2.49       97.47
          Y |        134        1.34       98.81
          Z |        119        1.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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