Are HOA/condo fees skyrocketing in Somerville?

I'm looking to purchase in Somerville, and so far, the average HOA yearly rate increases in recent years at places I've looked at is roughly 10%, which is unusually high, and higher than surrounding cities, where I also have looked.

Wondering if any Somerville homeowners have experienced this, and whether there is a sense of the cause. One guess I would have is Somerville's starting to replace the sewer system, impacting water/sewer costs and condo fees.

Hoping this is something temporary so I can buy here.