After exactly one year, my statistics look like this:
I would say I am averaging about 4 members per day on a good day.
I'm making about $200-400 per month from Amazon affiliate linking (which I am happy about), and have yet to implement a single banner ad or anything (which I may get to once the forum grows more).
I'm getting the majority of traffic for free from Facebook, and I'm also running a very, very well honed in Google AdWords campaign that I've been getting phenomenal conversions from, as well as CTRs (I do a lot of Google AdWords stuff for a living, so I'm good at it).
Anyways, I'm not sure how my growth compares to others, but I'd love to hear how most of you guys are (or were) doing after your first year.