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

    Vehicle |
       Make |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        159        1.59        1.59
          6 |        101        1.01        2.60
          7 |        436        4.36        6.96
          8 |          3        0.03        6.99
          9 |        345        3.45       10.44
         12 |      2,049       20.49       30.93
         13 |         35        0.35       31.28
         14 |        222        2.22       33.50
         18 |        345        3.45       36.95
         19 |        107        1.07       38.02
         20 |      2,135       21.35       59.37
         21 |        278        2.78       62.15
         22 |        393        3.93       66.08
         30 |        432        4.32       70.40
         32 |         10        0.10       70.50
         35 |        201        2.01       72.51
         36 |         36        0.36       72.87
         37 |        182        1.82       74.69
         41 |         51        0.51       75.20
         43 |         41        0.41       75.61
         45 |         21        0.21       75.82
         48 |          2        0.02       75.84
         49 |        243        2.43       78.27
         51 |         22        0.22       78.49
         69 |        335        3.35       81.84
         95 |        753        7.53       89.37
         98 |        164        1.64       91.01
         99 |         37        0.37       91.38
          . |        862        8.62      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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