Looking at the "All Time" stats overview, we have this:
I shan't bore you with the trend for the last month, but I do want to show you what's been happening on a weekly basis.
The site gets these regular spike, regular in both size and interval. And it looks like they take the weekends off. Looking at the monthly stats, tings seem to be trending downwards. Whatever the cause, it has just about doubled my hit count since last summer, going from somewhere around 35k to almost 80k.
It's a mystery.