Maybe the answer is here
http://www.timesonline.co.uk/article/0,,2087-959539,00.html
Australia looks for the ones that got away
Paul Ham and Maurice Chittenden
AUSTRALIA, once a destination for Britons seeking a new life in the sun, is facing such a large exodus of its citizens that its government has launched an inquiry to discover why.
New figures show that since the mid-1980s the number of Australians leaving for permanent residence abroad has doubled. Out of a population of 20m, about 1m Australians are living overseas, a quarter of them in Britain. Few are backpackers.
As well as celebrities such as Elle Macpherson, the supermodel, Kylie Minogue, the singer, and Natalie Imbruglia, the singer and actress, who have their main homes in Britain, lawyers, bankers, doctors and executives have joined the exodus, drawn by higher salaries and what they perceive as better career opportunities.
Figures compiled for the Committee for Economic Development of Australia (CEDA) show that permanent departures have increased 146% since the 1980s. In 1985, 16,000 Australians left for good; by 2001 the figure was almost 40,000 a year. Britain is the most popular destination, followed by America and Greece.
At the same time the number of Britons emigrating to Australia as "settlers" has dwindled to 8,000 a year, 50% down in the past four years. In the late 1960s, 41% of immigrants to Australia were British; by 2000 the share had dropped to 10%.
Professor Graeme Hugo, author of the CEDA report, said: "It's only really been in the past couple of years that the (Australian) government has started to realise the significance of the diaspora."
Whereas British migrants to Australia have for years had to endure the nickname "poms", a derivation of POHMs ?- Prisoners of His (or Her) Majesty ?- the new arrivals in London are happy to be called Umas: upwardly mobile Australians.
Tracy Edmundson, 33, a private equity broker, left Australia six years ago to work in the City. Her Australian fiancé, Paul Lamb, 29, now a vice- presidentl at Credit Suisse First Boston, arrived in 1999.
Edmundson said: "Salaries in the financial sector are a lot higher than in Australia. Over the years my career has been one of the main factors which has kept me in the UK."
She intends to return to Australia "one day" because she misses the great outdoors.
Imbruglia, who starred opposite Rowan Atkinson in last year's spoof spy film Johnny English, also plans to return. However, her reasoning will be of little comfort to the government in Canberra.
"I'm still an Aussie girl at heart and I'll always go back," she said in an interview last year. "I mean, I want to spend time in Hollywood but I can't see myself growing old there. Hopefully, all my ambition will die at some point and I can just let it go for the simple life."