Frequencies for deformed variable in vehicle dataset :

deformation |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        202       26.44       26.44
          2 |         83       10.86       37.30
          4 |        125       16.36       53.66
          6 |        354       46.34      100.00
------------+-----------------------------------
      Total |        764      100.00

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