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

    Vehicle |
       Make |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         39        0.39        0.39
          2 |        108        1.08        1.47
          3 |          2        0.02        1.49
          6 |        101        1.01        2.50
          7 |        434        4.34        6.84
          8 |          1        0.01        6.85
          9 |        165        1.65        8.50
         10 |          9        0.09        8.59
         12 |      1,681       16.81       25.40
         13 |         53        0.53       25.93
         14 |        192        1.92       27.85
         18 |        283        2.83       30.68
         19 |        142        1.42       32.10
         20 |      1,698       16.98       49.08
         21 |        334        3.34       52.42
         22 |        281        2.81       55.23
         23 |        218        2.18       57.41
         29 |          3        0.03       57.44
         30 |        210        2.10       59.54
         31 |          7        0.07       59.61
         32 |         26        0.26       59.87
         34 |         48        0.48       60.35
         35 |        617        6.17       66.52
         36 |          7        0.07       66.59
         37 |        591        5.91       72.50
         38 |         39        0.39       72.89
         39 |          9        0.09       72.98
         41 |        170        1.70       74.68
         42 |         45        0.45       75.13
         43 |          5        0.05       75.18
         44 |          5        0.05       75.23
         45 |         15        0.15       75.38
         46 |         17        0.17       75.55
         47 |          6        0.06       75.61
         48 |         55        0.55       76.16
         49 |        822        8.22       84.38
         50 |          4        0.04       84.42
         51 |         40        0.40       84.82
         52 |         58        0.58       85.40
         53 |        105        1.05       86.45
         57 |          2        0.02       86.47
         59 |         99        0.99       87.46
         62 |         99        0.99       88.45
         63 |        125        1.25       89.70
         65 |          2        0.02       89.72
         67 |        142        1.42       91.14
         69 |          8        0.08       91.22
         70 |          1        0.01       91.23
         82 |        133        1.33       92.56
         84 |        155        1.55       94.11
         85 |         98        0.98       95.09
         86 |         44        0.44       95.53
         87 |         97        0.97       96.50
         88 |         38        0.38       96.88
         95 |         77        0.77       97.65
         98 |         23        0.23       97.88
         99 |        212        2.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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