Yasi caused at least 3.6 billion ( 2011 USD ) in damage .
Yasi was the second costliest tropical cyclone in Australia 's history after Cyclone Tracy , as well as the costliest without inflation .
cyclone caused at least 3.6 billion ( 2011 USD ) in damage .
Yasi was the second costliest tropical cyclone in Australia 's history after Cyclone Tracy , as well as the costliest without inflation .