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

        vin |
character(5 |
          ) |      Freq.     Percent        Cum.
------------+-----------------------------------
          - |          1        0.01        0.01
          0 |         41        0.41        0.42
          1 |         32        0.32        0.74
          2 |         32        0.32        1.06
          3 |         17        0.17        1.23
          4 |         31        0.31        1.54
          5 |         24        0.24        1.78
          6 |         10        0.10        1.88
          7 |         14        0.14        2.02
          8 |         13        0.13        2.15
          9 |        337        3.37        5.52
          A |        605        6.05       11.57
          B |        431        4.31       15.88
          C |        865        8.65       24.53
          D |        606        6.06       30.59
          E |        348        3.48       34.07
          F |        591        5.91       39.98
          G |        393        3.93       43.91
          H |        176        1.76       45.67
          J |        297        2.97       48.64
          K |        631        6.31       54.95
          L |        426        4.26       59.21
          M |        336        3.36       62.57
          N |        403        4.03       66.60
          P |        709        7.09       73.69
          R |        397        3.97       77.66
          S |        448        4.48       82.14
          T |        341        3.41       85.55
          U |        555        5.55       91.10
          V |        110        1.10       92.20
          W |        258        2.58       94.78
          X |        317        3.17       97.95
          Y |        116        1.16       99.11
          Z |         89        0.89      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016