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

        vin |
character(1 |
         2) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         61        0.61        0.61
          0 |      1,879       18.79       19.40
          1 |      2,135       21.35       40.75
          2 |      1,183       11.83       52.58
          3 |        733        7.33       59.91
          4 |        430        4.30       64.21
          5 |        723        7.23       71.44
          6 |        584        5.84       77.28
          7 |        324        3.24       80.52
          8 |        236        2.36       82.88
          9 |        441        4.41       87.29
          A |        444        4.44       91.73
          B |        317        3.17       94.90
          C |        144        1.44       96.34
          D |         70        0.70       97.04
          E |         27        0.27       97.31
          F |         15        0.15       97.46
          G |         11        0.11       97.57
          H |         12        0.12       97.69
          J |         51        0.51       98.20
          K |         11        0.11       98.31
          L |         13        0.13       98.44
          M |         38        0.38       98.82
          N |         22        0.22       99.04
          P |          5        0.05       99.09
          R |          8        0.08       99.17
          S |          9        0.09       99.26
          T |          3        0.03       99.29
          U |         14        0.14       99.43
          V |         13        0.13       99.56
          W |          5        0.05       99.61
          X |         16        0.16       99.77
          Y |         11        0.11       99.88
          Z |         12        0.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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