Frequencies for first 10,000 rows of vin_5 variable in vehicle dataset :

      vin_5 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         33        0.33        0.33
          1 |         27        0.27        0.60
          2 |         36        0.36        0.96
          3 |         32        0.32        1.28
          4 |         65        0.65        1.93
          5 |         34        0.34        2.27
          6 |         18        0.18        2.45
          7 |         22        0.22        2.67
          8 |         17        0.17        2.84
          9 |        468        4.68        7.52
          A |        547        5.47       12.99
          B |        494        4.94       17.93
          C |        992        9.92       27.85
          D |        710        7.10       34.95
          E |        328        3.28       38.23
          F |        547        5.47       43.70
          G |        358        3.58       47.28
          H |        178        1.78       49.06
          J |        299        2.99       52.05
          K |        544        5.44       57.49
          L |        327        3.27       60.76
          M |        345        3.45       64.21
          N |        340        3.40       67.61
          P |        801        8.01       75.62
          R |        378        3.78       79.40
          S |        472        4.72       84.12
          T |        263        2.63       86.75
          U |        488        4.88       91.63
          V |        111        1.11       92.74
          W |        226        2.26       95.00
          X |        310        3.10       98.10
          Y |        105        1.05       99.15
          Z |         85        0.85      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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