Frequencies for first 10,000 rows of vin_11 variable in vehicle dataset :

     vin_11 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         65        0.65        0.65
          0 |        513        5.13        5.78
          1 |        383        3.83        9.61
          2 |        370        3.70       13.31
          3 |         72        0.72       14.03
          4 |        139        1.39       15.42
          5 |        179        1.79       17.21
          6 |        134        1.34       18.55
          7 |        176        1.76       20.31
          8 |        136        1.36       21.67
          9 |        526        5.26       26.93
          A |        570        5.70       32.63
          B |        235        2.35       34.98
          C |        603        6.03       41.01
          D |        252        2.52       43.53
          E |        360        3.60       47.13
          F |        347        3.47       50.60
          G |        227        2.27       52.87
          H |        415        4.15       57.02
          J |        274        2.74       59.76
          K |        317        3.17       62.93
          L |        385        3.85       66.78
          M |        316        3.16       69.94
          N |        265        2.65       72.59
          P |        261        2.61       75.20
          R |        229        2.29       77.49
          S |        368        3.68       81.17
          T |        156        1.56       82.73
          U |        520        5.20       87.93
          V |         23        0.23       88.16
          W |        205        2.05       90.21
          X |        126        1.26       91.47
          Y |        276        2.76       94.23
          Z |        577        5.77      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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