when do you think Japan had a recession before the end of 80's? was very much like australia now and most people thought they were going to rule the world, decoupling from everyone else, running massive gdp increases every year forever etc.
the data say Japan total debt is decreasing and soon will be less then Australia.
About the saving rate or savings in general you can get a broad idea by: total debt going up against gdp no much savings in place. If you want to study deposit and money flow more in detail you can check the
RBA financial aggregate where also Shadow got the data for his chart.
You can see M1 (currency + deposit stand at 251.2 bil$, offshore borrowing at 311 bil$ (and we even have a strong AU$ and those borowing are mainly in US$), then you can do a bit of study yourself comparing this data with M3, and you should do it for the past few years at least, etc.
Then, after you finish can you clarify what do you mean with this statement: