Yes 10 years unless under international Social Security agreement:<br>
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<a target=_blank href=http://www.centrelink.gov.au/internet/internet.nsf/payments/qual_res_agepens.htm>http://www.centrelink.gov.au/internet/internet.nsf/payments/qual_res_agepens.htm</a><br>
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<a target=_blank href=http://www.centrelink.gov.au/internet/internet.nsf/filestores/co030_0607/>http://www.centrelink.gov.au/internet/internet.nsf/filestores/co030_0607/</a>$file/co030_0607en.pdf