NFL Change In Fantasy Points By Position

What are the rates of decline for players at the different offensive positions in 2010 compared to 2009? Instead of measuring it by each individual category, the charts below are based solely on Fantasy PTS (ESPN standard scoring). It is very clear that running backs decline faster and sooner than quarterbacks and wide receivers. RBs show faster and more dramatic rates of improvement in their first 3 seasons, where QBs on average don't much decline until after 100 career games. WRs have the slowest rate of decline of all the positions, due largely to being involved in far fewer collisions.