NL50: Interesting hand in position against UTG NIT

[Aquadougs]

UTG: 12/7,5/2 (134). Cbet: 50%


Party Poker, $0.25/$0.50 NL Hold'em Cash Game, 6 Players
LeggoPoker.com - Hand History Converter

MP: $143.75
Hero (CO): $88.18
BTN: $220.42
SB: $53.43
BB: $61.67
UTG: $50

Pre-Flop: K[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/club.gif[/img] dealt to Hero (CO)
<font color="red">UTG raises to $2</font>, MP folds, Hero calls $2, 3 folds

Flop: ($4.75) 8[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/diamond.gif[/img] 8[img]/images/graemlins/club.gif[/img] (2 Players)
<font color="red">UTG bets $3</font>, Hero calls $3

Turn: ($10.75) 6[img]/images/graemlins/spade.gif[/img] (2 Players)
UTG checks, <font color="red">Hero bets $7.50</font>, <font color="red">UTG raises to $15</font>, Hero calls $7.50

River: ($40.75) Q[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">UTG bets $30 and is All-In</font>


How often doesnt he have this bettingpattern with AK?