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

    Vehicle |
       Make |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         81        0.81        0.81
          2 |         93        0.93        1.74
          3 |          2        0.02        1.76
          6 |        116        1.16        2.92
          7 |        455        4.55        7.47
          9 |        242        2.42        9.89
         12 |      1,793       17.93       27.82
         13 |         53        0.53       28.35
         14 |        255        2.55       30.90
         18 |        274        2.74       33.64
         19 |        121        1.21       34.85
         20 |      1,929       19.29       54.14
         21 |        294        2.94       57.08
         22 |        377        3.77       60.85
         23 |        249        2.49       63.34
         29 |          3        0.03       63.37
         30 |        300        3.00       66.37
         31 |          4        0.04       66.41
         32 |         15        0.15       66.56
         33 |          3        0.03       66.59
         34 |         29        0.29       66.88
         35 |        372        3.72       70.60
         36 |         28        0.28       70.88
         37 |        342        3.42       74.30
         38 |          4        0.04       74.34
         39 |          1        0.01       74.35
         41 |         83        0.83       75.18
         42 |         34        0.34       75.52
         43 |         15        0.15       75.67
         44 |         12        0.12       75.79
         45 |         17        0.17       75.96
         46 |          1        0.01       75.97
         47 |          4        0.04       76.01
         48 |         66        0.66       76.67
         49 |        459        4.59       81.26
         50 |         26        0.26       81.52
         51 |         16        0.16       81.68
         59 |          3        0.03       81.71
         60 |          6        0.06       81.77
         62 |         73        0.73       82.50
         63 |        121        1.21       83.71
         64 |          3        0.03       83.74
         66 |         47        0.47       84.21
         67 |        101        1.01       85.22
         69 |         14        0.14       85.36
         70 |          5        0.05       85.41
         81 |          1        0.01       85.42
         82 |         51        0.51       85.93
         84 |        189        1.89       87.82
         85 |         58        0.58       88.40
         86 |         41        0.41       88.81
         87 |         50        0.50       89.31
         88 |         24        0.24       89.55
         95 |        120        1.20       90.75
         98 |         16        0.16       90.91
         99 |         89        0.89       91.80
          . |        820        8.20      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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