Which has higher average age, total, Australia or Italy?

Australia, at 45.26 against 44.69 in Italy as of 2015.

How many years of comparable data are there for Australia and Italy?

15 years are reported by both, from 2001 to 2015.

The World Bank, published as Average age, total. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Australia

45.26

in 2015

Italy

44.69

in 2016

Australia rank

3rd

Italy rank

4th

Australia currently reports 45.26 against 44.69 in Italy, a difference of 0.57.

The two have swapped places 1 time across 15 shared years of data; in 2001 it was Italy ahead.

Australia ranks 3rd and Italy ranks 4th of 110 countries.

Italy has averaged higher in every one of the 2 decades both report.

Decade	Australia	Italy	Difference	Ahead
2000s	36.4	42.07	5.67	Italy
2010s	43.61	43.83	0.2218	Italy

Averages of every year both report within each decade.

Which has higher average age, total, Australia or Italy?: Australia, at 45.26 against 44.69 in Italy as of 2015.
What is the difference in average age, total between Australia and Italy?: 0.57, with Australia ahead.
How many years of comparable data are there for Australia and Italy?: 15 years are reported by both, from 2001 to 2015.
How do Australia and Italy rank globally for average age, total?: Australia ranks 3rd and Italy ranks 4th of 110 countries.
Where does this data come from?: The World Bank, published as Average age, total. Statizoid refreshes it automatically from the source and publishes the full history for both places.