Frequencies for first 10,000 rows of vin_4 variable in vehicle dataset :

      vin_4 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        619        6.19        6.19
          1 |      1,244       12.44       18.63
          2 |      1,040       10.40       29.03
          3 |        813        8.13       37.16
          4 |        532        5.32       42.48
          5 |        558        5.58       48.06
          6 |        349        3.49       51.55
          7 |      1,088       10.88       62.43
          8 |        336        3.36       65.79
          9 |      1,273       12.73       78.52
          A |        444        4.44       82.96
          B |        358        3.58       86.54
          C |        154        1.54       88.08
          D |         70        0.70       88.78
          E |         69        0.69       89.47
          F |         54        0.54       90.01
          G |        155        1.55       91.56
          H |        138        1.38       92.94
          I |          2        0.02       92.96
          J |         59        0.59       93.55
          K |         66        0.66       94.21
          L |         78        0.78       94.99
          M |         47        0.47       95.46
          N |         11        0.11       95.57
          P |         36        0.36       95.93
          Q |          2        0.02       95.95
          R |         85        0.85       96.80
          S |         95        0.95       97.75
          T |         48        0.48       98.23
          U |         15        0.15       98.38
          V |          7        0.07       98.45
          W |         15        0.15       98.60
          X |          3        0.03       98.63
          Y |        129        1.29       99.92
          Z |          8        0.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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