Frequencies for mcycl_ds variable in vehnit dataset :

         CC |
DISPLACEMEN |
          T |      Freq.     Percent        Cum.
------------+-----------------------------------
        599 |          2        0.18        0.18
        819 |          1        0.09        0.27
       1202 |          1        0.09        0.36
       1360 |          1        0.09        0.45
       1450 |          2        0.18        0.63
       1832 |          1        0.09        0.72
       9999 |         52        4.66        5.38
          . |      1,056       94.62      100.00
------------+-----------------------------------
      Total |      1,116      100.00

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