Thanks, although I must confess the list of figures looks confusing at times! LOL
I found anotehr source that implies the results from 2001 Census indicates 71% of all Australians are Anglo-Celtic (British/Irish) while 92% are whites, meaning 21% of Australians are non-British/Irish European in ancestry.
Last I read was 25% of Aussie citizens were post-WW2 migrants and their descendants. Don't remember the source.