You can change the number of weeks’ worth of data it displays, by adding “&weeks=xx” to the URL, like this. There’s a little bit of missing data here and there, which is why there are some skipped week numbers. Right now, I’ve collected approximately 25 weeks worth of data. This will only grow as MMS does, though! You might end up seeing this in the MMMPIS too!
Also, coming soon: A stand-alone executable version (for Windows) of the HMMDMMH!
EDIT: 2014 Week 26: After this was implemented we looked closer at the numbers and found an error. It has been corrected, hence the drop