This is a meaningless correlation. You can do that with lots of things. Like I can artificially link a graph of Boeing's stock and the temperature of the north pole. Is it related?

In terms of safety, and how Boeing depends on it: well, it isn't quite so simple. Safety is important, and it is logical to think safer planes mean more people fly. However, I think while the planes may be safer the conditions they fly in may be less safe. You have many upstart airlines buying planes that really don't know much about maintenance or safety. But they manage to do ok, most of the time, because the planes are built and designed so well.

And actually, depending on how the sale contracts are structured, maybe Boeing would have made even more money if their planes often crashed (presuming they could still sell them). The Gillette model?