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

       make |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          1        0.01        0.01
          2 |        192        1.92        1.93
          3 |          4        0.04        1.97
          6 |         89        0.89        2.86
          7 |        524        5.24        8.10
          9 |        132        1.32        9.42
         10 |         11        0.11        9.53
         12 |      1,806       18.06       27.59
         13 |         81        0.81       28.40
         14 |        162        1.62       30.02
         18 |        274        2.74       32.76
         19 |        121        1.21       33.97
         20 |      1,591       15.91       49.88
         21 |        321        3.21       53.09
         22 |        323        3.23       56.32
         23 |        279        2.79       59.11
         24 |         32        0.32       59.43
         30 |         61        0.61       60.04
         31 |          1        0.01       60.05
         34 |         44        0.44       60.49
         35 |        523        5.23       65.72
         37 |        433        4.33       70.05
         38 |         52        0.52       70.57
         39 |          8        0.08       70.65
         41 |        183        1.83       72.48
         42 |         32        0.32       72.80
         43 |          1        0.01       72.81
         44 |          3        0.03       72.84
         45 |          6        0.06       72.90
         47 |          2        0.02       72.92
         48 |         40        0.40       73.32
         49 |        612        6.12       79.44
         50 |          1        0.01       79.45
         51 |         21        0.21       79.66
         52 |        111        1.11       80.77
         53 |         34        0.34       81.11
         54 |         54        0.54       81.65
         55 |         66        0.66       82.31
         56 |          4        0.04       82.35
         58 |         15        0.15       82.50
         59 |         10        0.10       82.60
         60 |          7        0.07       82.67
         62 |          3        0.03       82.70
         63 |         14        0.14       82.84
         71 |          1        0.01       82.85
         72 |         60        0.60       83.45
         73 |         33        0.33       83.78
         76 |         38        0.38       84.16
         82 |        124        1.24       85.40
         84 |        113        1.13       86.53
         85 |         70        0.70       87.23
         86 |         39        0.39       87.62
         87 |         63        0.63       88.25
         89 |         40        0.40       88.65
         98 |        121        1.21       89.86
         99 |        271        2.71       92.57
          . |        743        7.43      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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