TortoiseHG/Mercurial Project Statistics and Reports

I've been working for a couple months on cleaning up the backend of a system I'm working on. The previous code was awful so I've been refactoring and rewriting to get the code to a state where I can better add and improve functionality. I want to be able to quantify the work I've done for the client so he can get a sense of how much work has been done. So, I want to run some reports showing things like: number of lines removed, added, changed. I've used TortoiseHG/Mercurial all along and also have pushed the code up to bigbucket.

What's the best way to generate these types of statistics from TortoiseHG/Mercurial or BitBucket?