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

    Vehicle |
       Make |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        128        1.28        1.28
          2 |         89        0.89        2.17
          6 |        104        1.04        3.21
          7 |        475        4.75        7.96
          8 |          1        0.01        7.97
          9 |        313        3.13       11.10
         12 |      1,897       18.97       30.07
         13 |         57        0.57       30.64
         14 |        269        2.69       33.33
         18 |        288        2.88       36.21
         19 |        119        1.19       37.40
         20 |      2,062       20.62       58.02
         21 |        286        2.86       60.88
         22 |        411        4.11       64.99
         23 |        275        2.75       67.74
         30 |        345        3.45       71.19
         32 |         22        0.22       71.41
         34 |         14        0.14       71.55
         35 |        305        3.05       74.60
         36 |         40        0.40       75.00
         37 |        285        2.85       77.85
         41 |         47        0.47       78.32
         42 |         32        0.32       78.64
         43 |         30        0.30       78.94
         45 |         28        0.28       79.22
         48 |         21        0.21       79.43
         49 |        265        2.65       82.08
         50 |         36        0.36       82.44
         51 |         22        0.22       82.66
         60 |          3        0.03       82.69
         62 |         68        0.68       83.37
         63 |         95        0.95       84.32
         65 |          5        0.05       84.37
         66 |         55        0.55       84.92
         67 |        100        1.00       85.92
         69 |         15        0.15       86.07
         70 |          6        0.06       86.13
         80 |          1        0.01       86.14
         81 |          2        0.02       86.16
         82 |         24        0.24       86.40
         84 |        163        1.63       88.03
         85 |         73        0.73       88.76
         86 |         36        0.36       89.12
         87 |         66        0.66       89.78
         88 |         86        0.86       90.64
         95 |         31        0.31       90.95
         98 |         63        0.63       91.58
         99 |         61        0.61       92.19
          . |        781        7.81      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Apr 2016