21.5 BB/100 over 25K hands. How crazy is this?

[ffr]

I've been playing a while, but just started to look into my PT numbers. In most of my games, I am about a 5 BB/100 hand player so far, but I found it shocking that my results at one level were WAY different. At the 6 person $1/$2 NL level over 25K hands I'm showing a profit of 21.5 BB/100? Now I know 25K hands isn't a HUGE sample, but it's not a small sample either.

I'm not posting this to brag...really, I just want to know how crazy this is. What do these types of results mean over 25K hands? I know these results can't hold up over a larger sample of hands, but isn't 25K hands enough to start making some safe assumpions about future expectations? If so, what future expectations can safely be made?

Thanks in advance.