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

 VIN LENGTH |      Freq.     Percent        Cum.
------------+-----------------------------------
          5 |          1        0.01        0.01
          7 |          9        0.09        0.10
          8 |          6        0.06        0.16
          9 |         17        0.17        0.33
         10 |         10        0.10        0.43
         11 |         33        0.33        0.76
         12 |         11        0.11        0.87
         13 |         40        0.40        1.27
         14 |          2        0.02        1.29
         16 |          2        0.02        1.31
         17 |      9,869       98.69      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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