So I'm a 25/12/2.8 ... what does this mean?

[sunnypoker]

hey guys, so i play on iPoker, 0.25/0.50NL 6Max

i have only recently started using pokertracker seriously to analyze my play and to actually import all my hands (and actually focus to play seriously rather than donking off easily.. although i may have tilted at times in between)

I have about 17k hands. and my stats combined is about 25/12/2.8
(i say combined because i have 13 hands from Ipoker and about 4k from OnGame network.. but that's not the point.. anyawys)

some other approximate figures:

VP$in SB : about 47%...
went to showdown about 25%
won at showdown about 56%
my AF are about
Flop: 3.6, Turn: 2.5, River 1.4 ish....

what does this mean??

what hand range does this mean i'm usually playing and which of those hand range am i raising??
are my aggression numbers not strong enough??

i know 17k isn't a big sample size but i still want to know how i should interpret these numbers.
I'm running at about 11PTBB/100