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

 VIN LENGTH |      Freq.     Percent        Cum.
------------+-----------------------------------
          5 |          2        0.02        0.02
          6 |          3        0.03        0.05
          7 |          3        0.03        0.08
          8 |          7        0.07        0.15
          9 |         18        0.18        0.33
         10 |         22        0.22        0.55
         11 |         51        0.51        1.06
         12 |         16        0.16        1.22
         13 |        117        1.17        2.39
         14 |          9        0.09        2.48
         15 |          1        0.01        2.49
         16 |          3        0.03        2.52
         17 |      9,734       97.34       99.86
         99 |         14        0.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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