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

    Vehicle |
       Make |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        113        1.13        1.13
          2 |         92        0.92        2.05
          6 |         84        0.84        2.89
          7 |        483        4.83        7.72
          8 |          7        0.07        7.79
          9 |        264        2.64       10.43
         12 |      1,871       18.71       29.14
         13 |         76        0.76       29.90
         14 |        240        2.40       32.30
         18 |        306        3.06       35.36
         19 |        161        1.61       36.97
         20 |      1,937       19.37       56.34
         21 |        297        2.97       59.31
         22 |        370        3.70       63.01
         23 |        231        2.31       65.32
         30 |        420        4.20       69.52
         31 |          3        0.03       69.55
         32 |         25        0.25       69.80
         33 |          7        0.07       69.87
         34 |         43        0.43       70.30
         35 |        398        3.98       74.28
         36 |         43        0.43       74.71
         37 |        492        4.92       79.63
         39 |          1        0.01       79.64
         41 |         74        0.74       80.38
         42 |         44        0.44       80.82
         43 |         30        0.30       81.12
         44 |          8        0.08       81.20
         45 |         44        0.44       81.64
         46 |          3        0.03       81.67
         47 |          4        0.04       81.71
         48 |         34        0.34       82.05
         49 |        396        3.96       86.01
         50 |         52        0.52       86.53
         51 |         37        0.37       86.90
         60 |          6        0.06       86.96
         62 |        143        1.43       88.39
         63 |        177        1.77       90.16
         65 |          6        0.06       90.22
         66 |         82        0.82       91.04
         67 |        159        1.59       92.63
         69 |         32        0.32       92.95
         70 |         21        0.21       93.16
         80 |          1        0.01       93.17
         81 |          3        0.03       93.20
         82 |         46        0.46       93.66
         83 |          1        0.01       93.67
         84 |        170        1.70       95.37
         85 |         89        0.89       96.26
         86 |         42        0.42       96.68
         87 |         87        0.87       97.55
         88 |        106        1.06       98.61
         95 |         51        0.51       99.12
         98 |         64        0.64       99.76
         99 |         24        0.24      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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