User Reputation - Update

Yeah this really makes no sense. I've been a member since last august and I've had two referrals and one person give me a good word and I only have 16? and I just got them too? you say a point for every month thats like, 7? (I'm not gonna bother taking the time to figure it out! haha) and I've had 900 posts. thats 9 points. thats 16ish and I have 16 but I've had people give me rep, why don't I have 17-18 ish?