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

       make |      Freq.     Percent        Cum.
------------+-----------------------------------
          2 |        195        1.95        1.95
          3 |         13        0.13        2.08
          6 |        135        1.35        3.43
          7 |        531        5.31        8.74
          9 |         71        0.71        9.45
         12 |      1,554       15.54       24.99
         13 |         60        0.60       25.59
         14 |        122        1.22       26.81
         18 |        155        1.55       28.36
         19 |        111        1.11       29.47
         20 |      1,451       14.51       43.98
         21 |         86        0.86       44.84
         22 |        210        2.10       46.94
         23 |        336        3.36       50.30
         24 |         92        0.92       51.22
         25 |          1        0.01       51.23
         30 |         79        0.79       52.02
         31 |          1        0.01       52.03
         32 |         18        0.18       52.21
         34 |         91        0.91       53.12
         35 |        439        4.39       57.51
         37 |        674        6.74       64.25
         38 |         56        0.56       64.81
         39 |          5        0.05       64.86
         41 |        116        1.16       66.02
         42 |         63        0.63       66.65
         45 |          5        0.05       66.70
         47 |         12        0.12       66.82
         48 |         39        0.39       67.21
         49 |        743        7.43       74.64
         50 |          6        0.06       74.70
         51 |         65        0.65       75.35
         52 |         90        0.90       76.25
         53 |        152        1.52       77.77
         54 |        111        1.11       78.88
         55 |        105        1.05       79.93
         58 |         44        0.44       80.37
         59 |         60        0.60       80.97
         62 |         13        0.13       81.10
         63 |         84        0.84       81.94
         64 |          7        0.07       82.01
         69 |         10        0.10       82.11
         71 |         11        0.11       82.22
         72 |        200        2.00       84.22
         73 |         63        0.63       84.85
         76 |        131        1.31       86.16
         82 |        168        1.68       87.84
         84 |         86        0.86       88.70
         85 |         66        0.66       89.36
         86 |         25        0.25       89.61
         87 |         66        0.66       90.27
         89 |          6        0.06       90.33
         90 |          1        0.01       90.34
         92 |          7        0.07       90.41
         93 |         27        0.27       90.68
         94 |         14        0.14       90.82
         98 |        119        1.19       92.01
         99 |        134        1.34       93.35
          . |        665        6.65      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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