Frequencies for dr_wgt variable in vehicle dataset :

     DRIVER |
     WEIGHT |      Freq.     Percent        Cum.
------------+-----------------------------------
        100 |          1        0.14        0.14
        110 |          2        0.28        0.42
        118 |          2        0.28        0.70
        120 |          3        0.42        1.12
        125 |          3        0.42        1.54
        130 |          6        0.84        2.37
        135 |          9        1.26        3.63
        138 |          1        0.14        3.77
        140 |         13        1.82        5.59
        142 |          1        0.14        5.73
        145 |         11        1.54        7.26
        148 |          1        0.14        7.40
        150 |         14        1.96        9.36
        152 |          2        0.28        9.64
        155 |          6        0.84       10.47
        156 |          1        0.14       10.61
        160 |         19        2.65       13.27
        162 |          1        0.14       13.41
        163 |          1        0.14       13.55
        164 |          1        0.14       13.69
        165 |          4        0.56       14.25
        166 |          1        0.14       14.39
        168 |          2        0.28       14.66
        170 |          6        0.84       15.50
        172 |          1        0.14       15.64
        175 |          5        0.70       16.34
        176 |          1        0.14       16.48
        180 |         15        2.09       18.58
        185 |          2        0.28       18.85
        187 |          2        0.28       19.13
        189 |          3        0.42       19.55
        190 |         11        1.54       21.09
        193 |          1        0.14       21.23
        197 |          1        0.14       21.37
        200 |         13        1.82       23.18
        206 |          1        0.14       23.32
        210 |          3        0.42       23.74
        215 |          2        0.28       24.02
        220 |          2        0.28       24.30
        225 |          1        0.14       24.44
        246 |          1        0.14       24.58
        250 |          4        0.56       25.14
        999 |        533       74.44       99.58
          . |          3        0.42      100.00
------------+-----------------------------------
      Total |        716      100.00

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