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

      vin_8 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |        365        3.65        3.65
          0 |      1,280       12.80       16.45
          1 |      2,525       25.25       41.70
          2 |      1,006       10.06       51.76
          3 |        664        6.64       58.40
          4 |        711        7.11       65.51
          5 |        718        7.18       72.69
          6 |        442        4.42       77.11
          7 |        352        3.52       80.63
          8 |        385        3.85       84.48
          9 |      1,298       12.98       97.46
          A |         65        0.65       98.11
          B |         32        0.32       98.43
          C |          5        0.05       98.48
          D |          9        0.09       98.57
          E |          2        0.02       98.59
          F |          5        0.05       98.64
          G |          2        0.02       98.66
          H |         83        0.83       99.49
          L |          7        0.07       99.56
          M |          5        0.05       99.61
          N |          6        0.06       99.67
          O |          3        0.03       99.70
          P |          3        0.03       99.73
          Q |          1        0.01       99.74
          R |          2        0.02       99.76
          S |          7        0.07       99.83
          T |         10        0.10       99.93
          U |          4        0.04       99.97
          V |          1        0.01       99.98
          Z |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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