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

       make |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          2        0.02        0.02
          2 |        164        1.64        1.66
          6 |         78        0.78        2.44
          7 |        631        6.31        8.75
          9 |        138        1.38       10.13
         10 |         11        0.11       10.24
         12 |      1,822       18.22       28.46
         13 |         75        0.75       29.21
         14 |        168        1.68       30.89
         18 |        181        1.81       32.70
         19 |         90        0.90       33.60
         20 |      1,704       17.04       50.64
         21 |        234        2.34       52.98
         22 |        297        2.97       55.95
         23 |        289        2.89       58.84
         24 |         70        0.70       59.54
         30 |         82        0.82       60.36
         32 |          1        0.01       60.37
         34 |         40        0.40       60.77
         35 |        461        4.61       65.38
         37 |        556        5.56       70.94
         38 |         83        0.83       71.77
         39 |         12        0.12       71.89
         41 |        139        1.39       73.28
         42 |         32        0.32       73.60
         43 |          2        0.02       73.62
         45 |          4        0.04       73.66
         47 |          2        0.02       73.68
         48 |         40        0.40       74.08
         49 |        569        5.69       79.77
         50 |          2        0.02       79.79
         51 |         43        0.43       80.22
         52 |        141        1.41       81.63
         53 |         61        0.61       82.24
         54 |         72        0.72       82.96
         55 |         58        0.58       83.54
         58 |         31        0.31       83.85
         59 |         26        0.26       84.11
         60 |          5        0.05       84.16
         61 |          1        0.01       84.17
         62 |          6        0.06       84.23
         63 |         41        0.41       84.64
         64 |          6        0.06       84.70
         69 |          1        0.01       84.71
         71 |          3        0.03       84.74
         72 |         83        0.83       85.57
         73 |         31        0.31       85.88
         76 |         37        0.37       86.25
         82 |        157        1.57       87.82
         84 |        138        1.38       89.20
         85 |         54        0.54       89.74
         86 |         40        0.40       90.14
         87 |         51        0.51       90.65
         89 |         17        0.17       90.82
         90 |          4        0.04       90.86
         92 |          1        0.01       90.87
         93 |          3        0.03       90.90
         94 |          2        0.02       90.92
         98 |         88        0.88       91.80
         99 |        153        1.53       93.33
          . |        667        6.67      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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