I rarely fly a single these days (thank God!)
Hate to break it to you, but if that twin is a piston, you are thoroughly kidding yourself:
From:
General Aviation Safety and the Cirrus SR22 | Cirrus SR22 Blog
Most surprising to me is that turboprop (singles and multi?) seem to have a (marginally) higher fatality rate than piston singles.
No reason to believe these numbers will be any different for Australia.