What is the Generally Acknowledge BB/hr Win Rate for Online Pros

I make about 3K a month, sometimes more. Again this is a reason for putting off moving up. I play excellent low-stakes poker, and I understand the environment is very different at the middle stakes. This is why I do not feel comfortable tackling 5/10(or 3/6 for that matter) with out a very big bankroll to fall back on. Although I am still confident I will be a winning player at that level I am being very cautious about moving up. I did 4 table 2/4 for almost 2 months and did well. I am assuming some of the better 2/4 tables are comparable to some of the average or below average tables at 5/10(in terms of skill). Maybe I am wrong here. For right now though, getting to 5/10 is still my goal. If it bites me in the ass, I will drop back down and ride the poker explosion for a few more years. My gf should be out of college by then.