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

 VIN LENGTH |      Freq.     Percent        Cum.
------------+-----------------------------------
          5 |          9        0.09        0.09
          6 |         25        0.25        0.34
          7 |         38        0.38        0.72
          8 |         13        0.13        0.85
          9 |         60        0.60        1.45
         10 |        119        1.19        2.64
         11 |        297        2.97        5.61
         12 |         75        0.75        6.36
         13 |        430        4.30       10.66
         14 |         12        0.12       10.78
         15 |          3        0.03       10.81
         16 |         13        0.13       10.94
         17 |      8,906       89.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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