Does your email inbox reflect your productivity level?

I've been testing a theory for a while now that has to do with my productivity level as it relates to the number of emails in my inbox.

Simply put, the fewer emails in my inbox, the more productive I feel. There are times that my inbox reaches 150 to 200 emails… it has been as high as 400. I can't explain why it happens, but it does, and it usually happens when I'm not at the top of my game (thus the correlation).

Today I'm happy to say that for the first time in quite a while I have zero (0) emails in my inbox. Nada, zero, zilch. I don't need to file email bankruptcy. I'm email-flow positive, and will do my best to stay that way.

What do you think? Does your inbox reflect your productivity level?