A human rights campaigner has challenged the federal government's indigenous life expectancy statistics, claiming the gap remains two decades wide.
Researcher Gerry Georgatos says figures from the Australian Bureau of Statistics have become skewed with more people now identifying as Aboriginal.
In 2013, the ABS estimated Aboriginal boys born between 2010 to 2012 could expect to live to 69.1 years of age - more than a decade lower than their non-indigenous peers.
Aboriginal women, who live to an average age of 73.7 years, experienced a gap of more than nine years.
"The grim fact is that Aboriginal and Torres Strait Islanders are still dying on average more than 20 years less than the rest of the population," Mr Georgatos said.
He said the Closing the Gap life expectancy target is not on track to be met by 2031.
"When poverty levels, jailing and suicide rates are among the highest in the world and increasing, they make no sense against a calculation estimate that claims the life expectancy divide has significantly reduced," Mr Georgatos said.