Frequencies for ve_forms variable in accident dataset :

   ve_forms |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        254       66.15       66.15
          2 |        109       28.39       94.53
          3 |         14        3.65       98.18
          4 |          5        1.30       99.48
          5 |          2        0.52      100.00
------------+-----------------------------------
      Total |        384      100.00

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