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

        VIN |
Character(1 |
         2) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         72        0.72        0.72
          0 |      1,800       18.00       18.72
          1 |      2,084       20.84       39.56
          2 |      1,166       11.66       51.22
          3 |        731        7.31       58.53
          4 |        485        4.85       63.38
          5 |        721        7.21       70.59
          6 |        595        5.95       76.54
          7 |        344        3.44       79.98
          8 |        182        1.82       81.80
          9 |        453        4.53       86.33
          A |        507        5.07       91.40
          B |        344        3.44       94.84
          C |        121        1.21       96.05
          D |         87        0.87       96.92
          E |         17        0.17       97.09
          F |         17        0.17       97.26
          G |         11        0.11       97.37
          H |         10        0.10       97.47
          J |         68        0.68       98.15
          K |         12        0.12       98.27
          L |         16        0.16       98.43
          M |         46        0.46       98.89
          N |         12        0.12       99.01
          P |          5        0.05       99.06
          R |          3        0.03       99.09
          S |          6        0.06       99.15
          T |          5        0.05       99.20
          U |         16        0.16       99.36
          V |         10        0.10       99.46
          W |         11        0.11       99.57
          X |         19        0.19       99.76
          Y |         15        0.15       99.91
          Z |          9        0.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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