In 2009 the suicide rate in Australia was slightly higher than it was in England, with rates of 9.69 and 8.78 per 100,000 population respectively.
Data:
England has a population of approximately 50 million
In 2009, there were 4,390 suicides in England or 8.78 per 100,000
http://www.stampoutsuicide.org.uk/england_and_wales.aspx
Australia has a population of approximately 22 million
In 2009, there were 2,132 suicides in Australia or 9.69 per 100,000
http://www.livingisforeveryone.com.au/IgnitionSuite/uploads/docs/LIFE%20factsheet_3_web.PDF
Wales has a population of approximately 2.9 million
In 2009, there were 258 suicides in Wales or 8.90 per 100,000
http://www.stampoutsuicide.org.uk/england_and_wales.aspx
New South Wales has a population of approximately 7.1 million
In 2009, there were 515 suicides in New South Wales or 7.25 per 100,000
http://www.livingisforeveryone.com.au/IgnitionSuite/uploads/docs/LIFE%20factsheet_3_web.PDF
Rates of suicide in Australia varied between the States during the 2005-2009 period from 7.9 (NSW) to 20.1 (NT) per 100,000.
Although there were 2,132 suicides in Australia in 2009, this is a higher figure than it was in 2006, with 2005 and 2006 rates being 2,102 and 1,799 respectively. Australian Institute of Health and Welfare 2009 ISBN: 9781740249119
The highest suicide rate in Australia is in the Male 85+ age group with a rate of almost 30 per 100,000.
Female suicide rates are highest in the 50-54 years age group at 8.8 per 100,000 and lowest in the 15-19 years age group at 3.4 per 100,000.
Number of suicides in England for ages over 15 only, between 1991 and 2010:
5,109 1991
5,088 1992
4,851 1993
4,714 1994
4,760 1995
4,591 1996
4,498 1997
4,986 1998
4,871 1999
4,725 2000
4,552 2001
4,430 2002
4,430 2003
4,510 2004
4,408 2005
4,175 2006
3,993 2007
4,282 2008
4,390 2009
4,200 2010
Source: http://www.ons.gov.uk/ons/rel/subnational-health4/suicides-in-the-united-kingdom/2010/stb-statistical-bulletin.html