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

 VIN LENGTH |      Freq.     Percent        Cum.
------------+-----------------------------------
          4 |          3        0.03        0.03
          5 |         13        0.13        0.16
          6 |         29        0.29        0.45
          7 |         56        0.56        1.01
          8 |         33        0.33        1.34
          9 |        103        1.03        2.37
         10 |        355        3.55        5.92
         11 |        777        7.77       13.69
         12 |        205        2.05       15.74
         13 |      1,361       13.61       29.35
         14 |         14        0.14       29.49
         15 |          9        0.09       29.58
         16 |          4        0.04       29.62
         17 |      6,619       66.19       95.81
         99 |        419        4.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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