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

    Vehicle |
       Make |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        122        1.22        1.22
          6 |        112        1.12        2.34
          7 |        487        4.87        7.21
          8 |          3        0.03        7.24
          9 |        341        3.41       10.65
         12 |      1,989       19.89       30.54
         13 |         44        0.44       30.98
         14 |        222        2.22       33.20
         18 |        391        3.91       37.11
         19 |        126        1.26       38.37
         20 |      2,175       21.75       60.12
         21 |        277        2.77       62.89
         22 |        466        4.66       67.55
         30 |        434        4.34       71.89
         32 |          9        0.09       71.98
         35 |        196        1.96       73.94
         36 |         21        0.21       74.15
         37 |        137        1.37       75.52
         41 |         43        0.43       75.95
         43 |          8        0.08       76.03
         45 |         25        0.25       76.28
         48 |         13        0.13       76.41
         49 |        175        1.75       78.16
         51 |         16        0.16       78.32
         69 |        340        3.40       81.72
         95 |        803        8.03       89.75
         98 |        212        2.12       91.87
         99 |         21        0.21       92.08
          . |        792        7.92      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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