Frequencies for mcycl_ds variable in vehnit dataset :

         CC |
DISPLACEMEN |
          T |      Freq.     Percent        Cum.
------------+-----------------------------------
        748 |          1        0.08        0.08
        988 |          1        0.08        0.15
       1000 |          1        0.08        0.23
       1450 |          3        0.23        0.45
       1832 |          1        0.08        0.53
       9999 |         86        6.48        7.00
          . |      1,235       93.00      100.00
------------+-----------------------------------
      Total |      1,328      100.00

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