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

      vin_8 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |        224        2.24        2.24
          0 |        916        9.16       11.40
          1 |      1,632       16.32       27.72
          2 |        705        7.05       34.77
          3 |        536        5.36       40.13
          4 |        576        5.76       45.89
          5 |        481        4.81       50.70
          6 |        302        3.02       53.72
          7 |        286        2.86       56.58
          8 |        246        2.46       59.04
          9 |        775        7.75       66.79
          A |        326        3.26       70.05
          B |        222        2.22       72.27
          C |        194        1.94       74.21
          D |        190        1.90       76.11
          E |        202        2.02       78.13
          F |        130        1.30       79.43
          G |        120        1.20       80.63
          H |        251        2.51       83.14
          I |          1        0.01       83.15
          J |         69        0.69       83.84
          K |         56        0.56       84.40
          L |        133        1.33       85.73
          M |         72        0.72       86.45
          N |         75        0.75       87.20
          P |         74        0.74       87.94
          R |        226        2.26       90.20
          S |        404        4.04       94.24
          T |         80        0.80       95.04
          U |         52        0.52       95.56
          V |         19        0.19       95.75
          W |         79        0.79       96.54
          X |        177        1.77       98.31
          Y |        145        1.45       99.76
          Z |         24        0.24      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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