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

     DRIVER |
     HEIGHT |      Freq.     Percent        Cum.
------------+-----------------------------------
         41 |          1        0.01        0.01
         51 |          1        0.01        0.02
         52 |          1        0.01        0.03
         53 |          1        0.01        0.04
         55 |          1        0.01        0.05
         56 |          4        0.04        0.09
         57 |         12        0.12        0.21
         58 |         15        0.15        0.36
         59 |         40        0.40        0.76
         60 |        148        1.48        2.24
         61 |        166        1.66        3.90
         62 |        359        3.59        7.49
         63 |        355        3.55       11.04
         64 |        497        4.97       16.01
         65 |        605        6.05       22.06
         66 |        775        7.75       29.81
         67 |        902        9.02       38.83
         68 |        926        9.26       48.09
         69 |        867        8.67       56.76
         70 |        850        8.50       65.26
         71 |        859        8.59       73.85
         72 |        837        8.37       82.22
         73 |        481        4.81       87.03
         74 |        367        3.67       90.70
         75 |        185        1.85       92.55
         76 |        122        1.22       93.77
         77 |         41        0.41       94.18
         78 |         22        0.22       94.40
         79 |         13        0.13       94.53
         80 |          2        0.02       94.55
         81 |          2        0.02       94.57
         82 |          2        0.02       94.59
         83 |          2        0.02       94.61
        999 |        492        4.92       99.53
          . |         47        0.47      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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