The relevant data I quoted relates to the RMD shares whihc are traded in the US, i.e., Resmed Inc., which is where the stock is ultimately priced (the Australian listing is merely a 10:1 Chess Depository Instrument [CDI]), and the US is where most of the shorting activity has occurred (Australian institutions are generally long the stock; its the US hedge funds who have been shorting and subsequently convering)
My source is Bloomberg and the ticker for the US listing of Resmed is "RMD US Equity"