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

 VIN LENGTH |      Freq.     Percent        Cum.
------------+-----------------------------------
          5 |          4        0.04        0.04
          6 |          4        0.04        0.08
          7 |          7        0.07        0.15
          8 |         12        0.12        0.27
          9 |         15        0.15        0.42
         10 |         13        0.13        0.55
         11 |         19        0.19        0.74
         12 |         13        0.13        0.87
         13 |         41        0.41        1.28
         14 |          1        0.01        1.29
         15 |          1        0.01        1.30
         16 |          2        0.02        1.32
         17 |      9,868       98.68      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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