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

  VIN Model |
       Year |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        566        5.66        5.66
          1 |        620        6.20       11.86
          2 |        585        5.85       17.71
          3 |        641        6.41       24.12
          4 |        646        6.46       30.58
          5 |        657        6.57       37.15
          6 |        675        6.75       43.90
          7 |        655        6.55       50.45
          8 |        508        5.08       55.53
          9 |        423        4.23       59.76
         10 |        269        2.69       62.45
         11 |        265        2.65       65.10
         12 |         28        0.28       65.38
         30 |          1        0.01       65.39
         31 |          1        0.01       65.40
         50 |          1        0.01       65.41
         51 |          1        0.01       65.42
         60 |          1        0.01       65.43
         63 |          2        0.02       65.45
         65 |          7        0.07       65.52
         67 |          1        0.01       65.53
         68 |          1        0.01       65.54
         69 |          5        0.05       65.59
         70 |          6        0.06       65.65
         71 |          4        0.04       65.69
         72 |          7        0.07       65.76
         73 |          4        0.04       65.80
         74 |          7        0.07       65.87
         75 |          6        0.06       65.93
         76 |          2        0.02       65.95
         77 |          5        0.05       66.00
         78 |          4        0.04       66.04
         79 |         11        0.11       66.15
         80 |          4        0.04       66.19
         81 |         10        0.10       66.29
         82 |         12        0.12       66.41
         83 |         16        0.16       66.57
         84 |         23        0.23       66.80
         85 |         30        0.30       67.10
         86 |         40        0.40       67.50
         87 |         48        0.48       67.98
         88 |         54        0.54       68.52
         89 |         72        0.72       69.24
         90 |        121        1.21       70.45
         91 |        134        1.34       71.79
         92 |        137        1.37       73.16
         93 |        168        1.68       74.84
         94 |        232        2.32       77.16
         95 |        329        3.29       80.45
         96 |        286        2.86       83.31
         97 |        374        3.74       87.05
         98 |        442        4.42       91.47
         99 |        514        5.14       96.61
          . |        339        3.39      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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