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

 VIN LENGTH |      Freq.     Percent        Cum.
------------+-----------------------------------
          5 |          1        0.01        0.01
          6 |          4        0.04        0.05
          7 |          6        0.06        0.11
          8 |          7        0.07        0.18
          9 |         12        0.12        0.30
         10 |         12        0.12        0.42
         11 |         34        0.34        0.76
         12 |         21        0.21        0.97
         13 |         56        0.56        1.53
         14 |          4        0.04        1.57
         15 |          2        0.02        1.59
         16 |          6        0.06        1.65
         17 |      9,835       98.35      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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