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

 VIN LENGTH |      Freq.     Percent        Cum.
------------+-----------------------------------
          4 |          2        0.02        0.02
          5 |         10        0.10        0.12
          6 |         23        0.23        0.35
          7 |         54        0.54        0.89
          8 |         30        0.30        1.19
          9 |         77        0.77        1.96
         10 |        272        2.72        4.68
         11 |        620        6.20       10.88
         12 |        200        2.00       12.88
         13 |      1,009       10.09       22.97
         14 |         26        0.26       23.23
         15 |          7        0.07       23.30
         16 |          7        0.07       23.37
         17 |      7,303       73.03       96.40
         99 |        360        3.60      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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