How many “draft” posts do you have right now?
How many will never be published and should be moved to the trash right now?
How many are just titles waiting for body copy to be added to finalize the posts?
How many are posts that were unique when you wrote them the first time, but before you could hit “publish” John Saddington beat you to the punch?
How many are posts that you realized have no redeeming value whatsoever, and were merely rants when you were writing them?