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

       make |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          3        0.03        0.03
          2 |        229        2.29        2.32
          3 |         12        0.12        2.44
          6 |        138        1.38        3.82
          7 |        589        5.89        9.71
          9 |         85        0.85       10.56
         10 |         11        0.11       10.67
         12 |      1,735       17.35       28.02
         13 |         99        0.99       29.01
         14 |        147        1.47       30.48
         18 |        188        1.88       32.36
         19 |         87        0.87       33.23
         20 |      1,650       16.50       49.73
         21 |        141        1.41       51.14
         22 |        209        2.09       53.23
         23 |        338        3.38       56.61
         24 |         92        0.92       57.53
         25 |          2        0.02       57.55
         30 |         61        0.61       58.16
         32 |          2        0.02       58.18
         34 |         36        0.36       58.54
         35 |        396        3.96       62.50
         37 |        613        6.13       68.63
         38 |         68        0.68       69.31
         39 |          7        0.07       69.38
         41 |        112        1.12       70.50
         42 |         43        0.43       70.93
         45 |          4        0.04       70.97
         47 |          4        0.04       71.01
         48 |         39        0.39       71.40
         49 |        578        5.78       77.18
         50 |          3        0.03       77.21
         51 |         53        0.53       77.74
         52 |        119        1.19       78.93
         53 |        112        1.12       80.05
         54 |         84        0.84       80.89
         55 |         79        0.79       81.68
         58 |         46        0.46       82.14
         59 |         55        0.55       82.69
         62 |         10        0.10       82.79
         63 |         83        0.83       83.62
         64 |         19        0.19       83.81
         69 |          2        0.02       83.83
         71 |          2        0.02       83.85
         72 |        132        1.32       85.17
         73 |         31        0.31       85.48
         74 |          1        0.01       85.49
         76 |         63        0.63       86.12
         82 |        156        1.56       87.68
         83 |          5        0.05       87.73
         84 |         79        0.79       88.52
         85 |         68        0.68       89.20
         86 |         30        0.30       89.50
         87 |         74        0.74       90.24
         89 |          9        0.09       90.33
         90 |         15        0.15       90.48
         92 |          1        0.01       90.49
         93 |         27        0.27       90.76
         94 |          1        0.01       90.77
         98 |         73        0.73       91.50
         99 |        222        2.22       93.72
          . |        628        6.28      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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