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

     driver |
     height |      Freq.     Percent        Cum.
------------+-----------------------------------
         39 |          1        0.01        0.01
         43 |          1        0.01        0.02
         50 |          1        0.01        0.03
         55 |          2        0.02        0.05
         56 |          4        0.04        0.09
         57 |          5        0.05        0.14
         58 |         13        0.13        0.27
         59 |         46        0.46        0.73
         60 |        127        1.27        2.00
         61 |        190        1.90        3.90
         62 |        326        3.26        7.16
         63 |        431        4.31       11.47
         64 |        481        4.81       16.28
         65 |        599        5.99       22.27
         66 |        742        7.42       29.69
         67 |        807        8.07       37.76
         68 |        883        8.83       46.59
         69 |        833        8.33       54.92
         70 |        871        8.71       63.63
         71 |        863        8.63       72.26
         72 |        891        8.91       81.17
         73 |        512        5.12       86.29
         74 |        376        3.76       90.05
         75 |        215        2.15       92.20
         76 |        105        1.05       93.25
         77 |         53        0.53       93.78
         78 |         21        0.21       93.99
         79 |          5        0.05       94.04
         80 |          2        0.02       94.06
         81 |          2        0.02       94.08
         82 |          1        0.01       94.09
        998 |         66        0.66       94.75
        999 |        525        5.25      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016