World Finals history

What was the first year of the World Finals in Charlotte?.

On the Charlotte web site, they write ''the eighth annual World Finals''. I was there in 2007 to watch, which would make it at least 9. Which one is it? Did they missed a year? Did it started ealier than 2007?

The races before were called the colossal's. Had one in the spring and one in the fall. But in 2007 0r 2008 they were the world finals.