27 pip movement on GBPUSD expected

We expect a $270 movement on GBPUSD within the next 2 hours. We expect GBPUSD to trend downwards 2 hours following the Westpac Consumer Confidence Index events in Australia release because the released value is < 85. A price movement of 27 pips is expected. Historical events that allowed us to draw this conclusion

15 Jun 00:30
11 May 00:30
08 Mar 23:30
08 Feb 23:30
14 Dec 23:30
13 Oct 00:30