What Does the Average Campaign Cost?

What does the average House and Senate campaign cost? According to National Journal's Congress Daily, too darn much:

In 1976, winning candidates for the House spent an average of $87,000 on their campaigns. In 2004, they spent an average of $1 million. For Senate candidates, the average cost of winning jumped from $609,000 in 1976 to $7 million in 2004. The Center for Public Integrity's study was sponsored by the Joan Shorenstein Center on the Press, Politics and Public Policy.