They say that ebook sales are declining in the US and UK, but considering the ebook subscription services and the indies that tend to not get included in many of these analyses, I don't think that sort of statement can really provide any real information. Are they trying to say that ebook reading is decreasing in these markets or are they saying that authors are making less money from ebooks in these markets? Those definitely aren't equivalent statements.
I guess my take home is: Congratulations Australians (?)