Between the early 1980’s and 2000, most States conducted annual bald eagle surveys. Since then, many states recognized that annual surveys were no longer necessary. That is why you will not see annual data after 2000. On August 9, 2007, the bald eagle was removed from the federal list of threatened and endangered species.
I am too young to really remember a time when the breeding pairs were so low. But the areas I have lived so far have been big areas for eagles and I have seen so many it has been hard to believe that at one time they were struggling. I am glad they are on the upswing!