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

       make |      Freq.     Percent        Cum.
------------+-----------------------------------
          2 |        221        2.21        2.21
          3 |         11        0.11        2.32
          6 |        141        1.41        3.73
          7 |        499        4.99        8.72
          9 |         40        0.40        9.12
         10 |          3        0.03        9.15
         12 |      1,434       14.34       23.49
         13 |         65        0.65       24.14
         14 |        128        1.28       25.42
         18 |        155        1.55       26.97
         19 |         92        0.92       27.89
         20 |      1,259       12.59       40.48
         21 |         95        0.95       41.43
         22 |        195        1.95       43.38
         23 |        294        2.94       46.32
         24 |        118        1.18       47.50
         25 |          1        0.01       47.51
         29 |          2        0.02       47.53
         30 |        104        1.04       48.57
         31 |          1        0.01       48.58
         32 |         19        0.19       48.77
         34 |        122        1.22       49.99
         35 |        428        4.28       54.27
         37 |        826        8.26       62.53
         38 |         45        0.45       62.98
         39 |         13        0.13       63.11
         41 |        119        1.19       64.30
         42 |         77        0.77       65.07
         45 |          5        0.05       65.12
         47 |         14        0.14       65.26
         48 |         68        0.68       65.94
         49 |        869        8.69       74.63
         50 |         16        0.16       74.79
         51 |         76        0.76       75.55
         52 |        114        1.14       76.69
         53 |        245        2.45       79.14
         54 |        112        1.12       80.26
         55 |        107        1.07       81.33
         58 |         46        0.46       81.79
         59 |         78        0.78       82.57
         62 |         15        0.15       82.72
         63 |         88        0.88       83.60
         64 |          4        0.04       83.64
         69 |          9        0.09       83.73
         71 |         18        0.18       83.91
         72 |        327        3.27       87.18
         73 |        106        1.06       88.24
         76 |        194        1.94       90.18
         82 |        228        2.28       92.46
         83 |          1        0.01       92.47
         84 |        110        1.10       93.57
         85 |         95        0.95       94.52
         86 |         40        0.40       94.92
         87 |        107        1.07       95.99
         89 |          8        0.08       96.07
         90 |          4        0.04       96.11
         92 |          7        0.07       96.18
         93 |          5        0.05       96.23
         94 |          5        0.05       96.28
         98 |        156        1.56       97.84
         99 |        216        2.16      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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