Frequencies for mcycl_ds variable in vehicle dataset :

         CC |
DISPLACEMEN |
          T |      Freq.     Percent        Cum.
------------+-----------------------------------
         49 |          2        0.28        0.28
        250 |          2        0.28        0.56
        450 |          2        0.28        0.84
        500 |          1        0.14        0.98
        599 |          1        0.14        1.12
        600 |          1        0.14        1.26
        750 |          1        0.14        1.40
        853 |          1        0.14        1.54
        900 |          1        0.14        1.68
        919 |          1        0.14        1.82
       1000 |          2        0.28        2.09
       1074 |          5        0.70        2.79
       1127 |          2        0.28        3.07
       9999 |        103       14.39       17.46
          . |        591       82.54      100.00
------------+-----------------------------------
      Total |        716      100.00

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