The graph is very steep and getting steeper!! Seriously it is year over year sales change by quarter graphed as percentage change.(I guess to make it look more

The graph is very steep and getting steeper!! Seriously it is year over year sales change by quarter graphed as percentage change.(I guess to make it look more dramatic) here is the raw data: http://www.naa.org/TrendsandNumbers/Advertising-Expenditures.aspx http://www.naa.org/TrendsandNumbers/Advertising-Expenditures...