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

      vin_5 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          1        0.01        0.01
          0 |         65        0.65        0.66
          1 |         33        0.33        0.99
          2 |         54        0.54        1.53
          3 |         42        0.42        1.95
          4 |         80        0.80        2.75
          5 |         22        0.22        2.97
          6 |         24        0.24        3.21
          7 |         35        0.35        3.56
          8 |         12        0.12        3.68
          9 |        407        4.07        7.75
          A |        538        5.38       13.13
          B |        554        5.54       18.67
          C |        839        8.39       27.06
          D |        744        7.44       34.50
          E |        296        2.96       37.46
          F |        545        5.45       42.91
          G |        342        3.42       46.33
          H |        174        1.74       48.07
          J |        301        3.01       51.08
          K |        508        5.08       56.16
          L |        304        3.04       59.20
          M |        342        3.42       62.62
          N |        401        4.01       66.63
          P |        849        8.49       75.12
          R |        449        4.49       79.61
          S |        486        4.86       84.47
          T |        259        2.59       87.06
          U |        441        4.41       91.47
          V |        120        1.20       92.67
          W |        200        2.00       94.67
          X |        322        3.22       97.89
          Y |        124        1.24       99.13
          Z |         87        0.87      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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