Frequencies for first 10,000 rows of vin_8 variable in vehicle dataset :

      vin_8 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         10        0.10        0.10
          0 |        204        2.04        2.14
          1 |        621        6.21        8.35
          2 |        260        2.60       10.95
          3 |        367        3.67       14.62
          4 |        444        4.44       19.06
          5 |        358        3.58       22.64
          6 |        261        2.61       25.25
          7 |        153        1.53       26.78
          8 |        123        1.23       28.01
          9 |        373        3.73       31.74
          A |        412        4.12       35.86
          B |        252        2.52       38.38
          C |        267        2.67       41.05
          D |        343        3.43       44.48
          E |        659        6.59       51.07
          F |        275        2.75       53.82
          G |        166        1.66       55.48
          H |        184        1.84       57.32
          J |        134        1.34       58.66
          K |        474        4.74       63.40
          L |        228        2.28       65.68
          M |        133        1.33       67.01
          N |        333        3.33       70.34
          P |        216        2.16       72.50
          R |        339        3.39       75.89
          S |        339        3.39       79.28
          T |        338        3.38       82.66
          U |        243        2.43       85.09
          V |        218        2.18       87.27
          W |        410        4.10       91.37
          X |        430        4.30       95.67
          Y |        277        2.77       98.44
          Z |        156        1.56      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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