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

       make |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          2        0.02        0.02
          2 |        195        1.95        1.97
          3 |         11        0.11        2.08
          6 |        139        1.39        3.47
          7 |        521        5.21        8.68
          9 |         33        0.33        9.01
         10 |          3        0.03        9.04
         12 |      1,603       16.03       25.07
         13 |         96        0.96       26.03
         14 |        103        1.03       27.06
         18 |        175        1.75       28.81
         19 |        104        1.04       29.85
         20 |      1,464       14.64       44.49
         21 |         62        0.62       45.11
         22 |        143        1.43       46.54
         23 |        285        2.85       49.39
         24 |         70        0.70       50.09
         29 |          2        0.02       50.11
         30 |         52        0.52       50.63
         32 |         16        0.16       50.79
         34 |        115        1.15       51.94
         35 |        459        4.59       56.53
         37 |        671        6.71       63.24
         38 |         56        0.56       63.80
         39 |          6        0.06       63.86
         41 |        122        1.22       65.08
         42 |         57        0.57       65.65
         45 |          9        0.09       65.74
         48 |         47        0.47       66.21
         49 |        820        8.20       74.41
         50 |          8        0.08       74.49
         51 |         69        0.69       75.18
         52 |        104        1.04       76.22
         53 |        130        1.30       77.52
         54 |         79        0.79       78.31
         55 |         68        0.68       78.99
         58 |         27        0.27       79.26
         59 |        104        1.04       80.30
         62 |          8        0.08       80.38
         63 |         85        0.85       81.23
         64 |          1        0.01       81.24
         69 |          4        0.04       81.28
         71 |          6        0.06       81.34
         72 |        198        1.98       83.32
         73 |         61        0.61       83.93
         76 |        100        1.00       84.93
         77 |          1        0.01       84.94
         82 |        199        1.99       86.93
         84 |         55        0.55       87.48
         85 |         51        0.51       87.99
         86 |         17        0.17       88.16
         87 |         60        0.60       88.76
         89 |          7        0.07       88.83
         92 |          1        0.01       88.84
         93 |         30        0.30       89.14
         94 |          2        0.02       89.16
         98 |        134        1.34       90.50
         99 |        195        1.95       92.45
          . |        755        7.55      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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