Easy Does It....

I've been obsessing about my "easy" runs a bit of late: am I doing enough of them or too much? Am I doing them slow enough or too fast?

This is a graph of all of the runs I've tagged as "easy" in the past six months. I see two trends:

a. My easy runs are getting faster.
b. I'm tagging fewer runs as "easy."

I'm not overly concerned with A. But B I'm not so sure about. While it's true I'm doing fewer easy runs, I'm also doing some easy cycling days (which don't show up on this graph).