They have a link to the ACE indicies for each storm, and then a tally, at the ncdc website... and there is a graph you may like to see. Lemme check to see if I can find it.

EDIT: Here:

http://lwf.ncdc.noaa.gov/img/climate/research/2005/nov/atlantic-ace-oct31.gif

and here:

http://www.ncdc.noaa.gov/oa/climate/research/2005/2005-atlantic-trop-cyclones.html

We had a lot of minimal tropical storms (gert, lee, tammy, etc), but at the same time some insane heavy hitters (emily, rita, wilma, etc) that will invariably skew the data a bit.