Frequencies for first 10,000 rows of vin_12 variable in vehicle dataset :

        vin |
character(1 |
         2) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         63        0.63        0.63
          0 |      1,869       18.69       19.32
          1 |      2,084       20.84       40.16
          2 |      1,200       12.00       52.16
          3 |        725        7.25       59.41
          4 |        420        4.20       63.61
          5 |        722        7.22       70.83
          6 |        607        6.07       76.90
          7 |        296        2.96       79.86
          8 |        231        2.31       82.17
          9 |        439        4.39       86.56
          A |        481        4.81       91.37
          B |        332        3.32       94.69
          C |        131        1.31       96.00
          D |         83        0.83       96.83
          E |         32        0.32       97.15
          F |         25        0.25       97.40
          G |          8        0.08       97.48
          H |         11        0.11       97.59
          J |         40        0.40       97.99
          K |          9        0.09       98.08
          L |         15        0.15       98.23
          M |         53        0.53       98.76
          N |          9        0.09       98.85
          O |          1        0.01       98.86
          P |         10        0.10       98.96
          R |          7        0.07       99.03
          S |         10        0.10       99.13
          T |          6        0.06       99.19
          U |         13        0.13       99.32
          V |         13        0.13       99.45
          W |         17        0.17       99.62
          X |         16        0.16       99.78
          Y |         12        0.12       99.90
          Z |         10        0.10      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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