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

    Vehicle |
 Model Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        114        1.14        1.14
          1 |        670        6.70        7.84
          2 |        665        6.65       14.49
          3 |        429        4.29       18.78
          4 |        150        1.50       20.28
          5 |        116        1.16       21.44
          6 |        294        2.94       24.38
          7 |        126        1.26       25.64
          8 |        249        2.49       28.13
          9 |        422        4.22       32.35
         10 |        325        3.25       35.60
         11 |        147        1.47       37.07
         12 |        115        1.15       38.22
         13 |        107        1.07       39.29
         14 |         27        0.27       39.56
         15 |         94        0.94       40.50
         16 |         12        0.12       40.62
         17 |          5        0.05       40.67
         31 |        286        2.86       43.53
         32 |        474        4.74       48.27
         33 |        333        3.33       51.60
         34 |        208        2.08       53.68
         35 |        120        1.20       54.88
         36 |         99        0.99       55.87
         37 |         53        0.53       56.40
         38 |         48        0.48       56.88
         39 |         18        0.18       57.06
         40 |          1        0.01       57.07
         41 |          2        0.02       57.09
         42 |          3        0.03       57.12
         43 |         18        0.18       57.30
         61 |         13        0.13       57.43
         62 |         22        0.22       57.65
         63 |         92        0.92       58.57
         64 |        126        1.26       59.83
         65 |        310        3.10       62.93
         66 |        301        3.01       65.94
         69 |        135        1.35       67.29
         71 |        101        1.01       68.30
         72 |        329        3.29       71.59
         73 |      1,217       12.17       83.76
         74 |        342        3.42       87.18
         75 |         14        0.14       87.32
         76 |         21        0.21       87.53
         77 |         11        0.11       87.64
         78 |          5        0.05       87.69
         79 |        100        1.00       88.69
         80 |          1        0.01       88.70
         81 |        181        1.81       90.51
         82 |         28        0.28       90.79
         83 |        100        1.00       91.79
         84 |        177        1.77       93.56
         85 |         31        0.31       93.87
         87 |          2        0.02       93.89
         88 |         48        0.48       94.37
         89 |        224        2.24       96.61
         90 |          4        0.04       96.65
         97 |         48        0.48       97.13
         98 |          7        0.07       97.20
         99 |        280        2.80      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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