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

 VIN LENGTH |      Freq.     Percent        Cum.
------------+-----------------------------------
          5 |          5        0.05        0.05
          6 |          4        0.04        0.09
          7 |          6        0.06        0.15
          8 |          7        0.07        0.22
          9 |         19        0.19        0.41
         10 |         24        0.24        0.65
         11 |         43        0.43        1.08
         12 |         15        0.15        1.23
         13 |         74        0.74        1.97
         14 |          5        0.05        2.02
         15 |          5        0.05        2.07
         16 |          8        0.08        2.15
         17 |      9,785       97.85      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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