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

    Vehicle |
 Model Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        182        1.82        1.82
          1 |        946        9.46       11.28
          2 |      1,077       10.77       22.05
          3 |        695        6.95       29.00
          4 |        209        2.09       31.09
          5 |        159        1.59       32.68
          6 |        478        4.78       37.46
          7 |        157        1.57       39.03
          8 |        337        3.37       42.40
          9 |        412        4.12       46.52
         10 |        350        3.50       50.02
         11 |        129        1.29       51.31
         12 |         67        0.67       51.98
         13 |         27        0.27       52.25
         14 |         11        0.11       52.36
         15 |         23        0.23       52.59
         31 |         46        0.46       53.05
         32 |         29        0.29       53.34
         33 |         10        0.10       53.44
         34 |         42        0.42       53.86
         61 |          3        0.03       53.89
         62 |         33        0.33       54.22
         63 |        118        1.18       55.40
         64 |        125        1.25       56.65
         65 |        280        2.80       59.45
         66 |        155        1.55       61.00
         69 |        344        3.44       64.44
         71 |        101        1.01       65.45
         72 |        232        2.32       67.77
         73 |        891        8.91       76.68
         74 |        256        2.56       79.24
         75 |          6        0.06       79.30
         76 |         31        0.31       79.61
         78 |          9        0.09       79.70
         79 |        472        4.72       84.42
         81 |        126        1.26       85.68
         82 |         21        0.21       85.89
         83 |         48        0.48       86.37
         85 |         17        0.17       86.54
         88 |         97        0.97       87.51
         89 |        531        5.31       92.82
         98 |         42        0.42       93.24
         99 |        676        6.76      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Apr 2016