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

    Vehicle |
       Make |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          1        0.01        0.01
          2 |        210        2.10        2.11
          3 |          8        0.08        2.19
          6 |        151        1.51        3.70
          7 |        527        5.27        8.97
          9 |         20        0.20        9.17
         10 |          1        0.01        9.18
         12 |      1,368       13.68       22.86
         13 |         70        0.70       23.56
         14 |        115        1.15       24.71
         18 |        124        1.24       25.95
         19 |         98        0.98       26.93
         20 |      1,262       12.62       39.55
         21 |         70        0.70       40.25
         22 |        133        1.33       41.58
         23 |        274        2.74       44.32
         24 |         89        0.89       45.21
         30 |         99        0.99       46.20
         32 |         25        0.25       46.45
         34 |         95        0.95       47.40
         35 |        485        4.85       52.25
         36 |          1        0.01       52.26
         37 |        847        8.47       60.73
         38 |         50        0.50       61.23
         39 |         18        0.18       61.41
         41 |        116        1.16       62.57
         42 |         78        0.78       63.35
         43 |          1        0.01       63.36
         45 |         10        0.10       63.46
         47 |          3        0.03       63.49
         48 |         62        0.62       64.11
         49 |        980        9.80       73.91
         50 |         15        0.15       74.06
         51 |         80        0.80       74.86
         52 |        125        1.25       76.11
         53 |        209        2.09       78.20
         54 |        110        1.10       79.30
         55 |        138        1.38       80.68
         58 |         60        0.60       81.28
         59 |         93        0.93       82.21
         60 |          1        0.01       82.22
         62 |         16        0.16       82.38
         63 |         98        0.98       83.36
         64 |          3        0.03       83.39
         65 |          1        0.01       83.40
         69 |         11        0.11       83.51
         71 |         18        0.18       83.69
         72 |        386        3.86       87.55
         73 |        113        1.13       88.68
         74 |          2        0.02       88.70
         76 |        163        1.63       90.33
         77 |          3        0.03       90.36
         82 |        207        2.07       92.43
         84 |         97        0.97       93.40
         85 |         75        0.75       94.15
         86 |         38        0.38       94.53
         87 |        102        1.02       95.55
         89 |          7        0.07       95.62
         90 |          6        0.06       95.68
         92 |          8        0.08       95.76
         93 |          3        0.03       95.79
         94 |          1        0.01       95.80
         97 |          1        0.01       95.81
         98 |        149        1.49       97.30
         99 |        270        2.70      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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