The figures, which saw Australians averaging A$66 (US$51) on DSL in December 2004, project expenditure to fall as low as A$50 by the end of 2006.

This is in line with global spending which has fallen 9.3 per cent since the beginning of this year.

Telsyte analyst Warren Chaisatien said the falling figures are relative to the adoption of broadband across the globe.

"These figures are a good representation of an overall fall in broadband costs," Chaisatien said.

"They reflect strongly on the adoption of [broadband] technology, as DSL represents about three quarters of the [Australian] broadband market share."