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

    Vehicle |
       Make |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         37        0.37        0.37
          2 |        114        1.14        1.51
          3 |          2        0.02        1.53
          6 |        111        1.11        2.64
          7 |        520        5.20        7.84
          8 |          1        0.01        7.85
          9 |        182        1.82        9.67
         10 |          5        0.05        9.72
         12 |      1,715       17.15       26.87
         13 |         47        0.47       27.34
         14 |        189        1.89       29.23
         18 |        291        2.91       32.14
         19 |        124        1.24       33.38
         20 |      1,995       19.95       53.33
         21 |        309        3.09       56.42
         22 |        328        3.28       59.70
         23 |        269        2.69       62.39
         30 |        149        1.49       63.88
         31 |          1        0.01       63.89
         32 |         21        0.21       64.10
         33 |          2        0.02       64.12
         34 |         33        0.33       64.45
         35 |        544        5.44       69.89
         36 |          7        0.07       69.96
         37 |        343        3.43       73.39
         38 |         46        0.46       73.85
         39 |          2        0.02       73.87
         41 |        159        1.59       75.46
         42 |         27        0.27       75.73
         43 |          6        0.06       75.79
         44 |          6        0.06       75.85
         45 |         15        0.15       76.00
         46 |         11        0.11       76.11
         47 |          6        0.06       76.17
         48 |         53        0.53       76.70
         49 |        651        6.51       83.21
         50 |          9        0.09       83.30
         51 |         19        0.19       83.49
         52 |         53        0.53       84.02
         53 |         57        0.57       84.59
         59 |         68        0.68       85.27
         62 |         36        0.36       85.63
         63 |         56        0.56       86.19
         64 |          2        0.02       86.21
         67 |         56        0.56       86.77
         69 |          4        0.04       86.81
         82 |         88        0.88       87.69
         84 |        121        1.21       88.90
         85 |         74        0.74       89.64
         86 |         38        0.38       90.02
         87 |         60        0.60       90.62
         88 |         29        0.29       90.91
         95 |         44        0.44       91.35
         98 |         14        0.14       91.49
         99 |        128        1.28       92.77
          . |        723        7.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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