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

     DRIVER |
     HEIGHT |      Freq.     Percent        Cum.
------------+-----------------------------------
         34 |          1        0.01        0.01
         48 |          1        0.01        0.02
         52 |          1        0.01        0.03
         53 |          1        0.01        0.04
         56 |          2        0.02        0.06
         57 |          8        0.08        0.14
         58 |         10        0.10        0.24
         59 |         42        0.42        0.66
         60 |        159        1.59        2.25
         61 |        200        2.00        4.25
         62 |        337        3.37        7.62
         63 |        402        4.02       11.64
         64 |        468        4.68       16.32
         65 |        613        6.13       22.45
         66 |        848        8.48       30.93
         67 |        832        8.32       39.25
         68 |        894        8.94       48.19
         69 |        794        7.94       56.13
         70 |        927        9.27       65.40
         71 |        814        8.14       73.54
         72 |        819        8.19       81.73
         73 |        470        4.70       86.43
         74 |        358        3.58       90.01
         75 |        198        1.98       91.99
         76 |        112        1.12       93.11
         77 |         46        0.46       93.57
         78 |         15        0.15       93.72
         79 |          5        0.05       93.77
         80 |          8        0.08       93.85
         81 |          2        0.02       93.87
        999 |        553        5.53       99.40
          . |         60        0.60      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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