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

    Vehicle |
 Model Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         95        0.95        0.95
          1 |        624        6.24        7.19
          2 |        498        4.98       12.17
          3 |        419        4.19       16.36
          4 |        130        1.30       17.66
          5 |        102        1.02       18.68
          6 |        260        2.60       21.28
          7 |        141        1.41       22.69
          8 |        224        2.24       24.93
          9 |        424        4.24       29.17
         10 |        308        3.08       32.25
         11 |        135        1.35       33.60
         12 |        117        1.17       34.77
         13 |        128        1.28       36.05
         14 |         29        0.29       36.34
         15 |        113        1.13       37.47
         16 |         31        0.31       37.78
         17 |         34        0.34       38.12
         18 |          2        0.02       38.14
         31 |        330        3.30       41.44
         32 |        479        4.79       46.23
         33 |        296        2.96       49.19
         34 |        246        2.46       51.65
         35 |        108        1.08       52.73
         36 |         93        0.93       53.66
         37 |         48        0.48       54.14
         38 |         55        0.55       54.69
         39 |         26        0.26       54.95
         40 |         19        0.19       55.14
         41 |          3        0.03       55.17
         42 |          5        0.05       55.22
         43 |         37        0.37       55.59
         44 |         12        0.12       55.71
         61 |         15        0.15       55.86
         62 |         42        0.42       56.28
         63 |         94        0.94       57.22
         64 |        110        1.10       58.32
         65 |        415        4.15       62.47
         66 |        309        3.09       65.56
         69 |        108        1.08       66.64
         70 |         11        0.11       66.75
         71 |         72        0.72       67.47
         72 |        473        4.73       72.20
         73 |      1,063       10.63       82.83
         74 |        341        3.41       86.24
         75 |         12        0.12       86.36
         76 |         12        0.12       86.48
         77 |         90        0.90       87.38
         78 |          7        0.07       87.45
         79 |         85        0.85       88.30
         81 |        207        2.07       90.37
         82 |         29        0.29       90.66
         83 |        158        1.58       92.24
         84 |        383        3.83       96.07
         85 |         20        0.20       96.27
         87 |          2        0.02       96.29
         88 |         62        0.62       96.91
         89 |         33        0.33       97.24
         90 |          6        0.06       97.30
         97 |         47        0.47       97.77
         98 |         18        0.18       97.95
         99 |        205        2.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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