Frequencies for first 10,000 rows of vin_8 variable in vehicle dataset :

      vin_8 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |        305        3.05        3.05
          0 |      1,121       11.21       14.26
          1 |      2,273       22.73       36.99
          2 |        961        9.61       46.60
          3 |        638        6.38       52.98
          4 |        697        6.97       59.95
          5 |        704        7.04       66.99
          6 |        426        4.26       71.25
          7 |        418        4.18       75.43
          8 |        375        3.75       79.18
          9 |      1,100       11.00       90.18
          A |        164        1.64       91.82
          B |        122        1.22       93.04
          C |         24        0.24       93.28
          D |         81        0.81       94.09
          E |         52        0.52       94.61
          F |         44        0.44       95.05
          G |         40        0.40       95.45
          H |        111        1.11       96.56
          J |         15        0.15       96.71
          K |          9        0.09       96.80
          L |         49        0.49       97.29
          M |         16        0.16       97.45
          N |         35        0.35       97.80
          P |          7        0.07       97.87
          R |         19        0.19       98.06
          S |         84        0.84       98.90
          T |         17        0.17       99.07
          U |          3        0.03       99.10
          V |          1        0.01       99.11
          W |         12        0.12       99.23
          X |         39        0.39       99.62
          Y |         28        0.28       99.90
          Z |         10        0.10      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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