Dubai: Abu Dhabi Investment Authority (ADIA), the sovereign wealth fund of Abu Dhabi, reported an increase in 20 year annualised rates of return on investment gaining from 6.1 per cent by the end of 2008 to 6.5 per cent in 2009 – at a time when global markets were reeling from the global financial crisis.

ADIA also recorded a 5.2 per cent gain on its 30 year annualised rates of return on investment growing from 7.6 per cent in 2008 to 8 per cent by the end of 2009, its latest report shows.

Approximately 80 per cent of ADIA’s assets are managed by carefully-selected external fund managers whose activities are monitored daily and about 60 per cent of ADIA’s assets are invested in index-replicating strategies.

ADIA, which grew from strength to strength with a few number of officials to more than 1,200 employees, receives funds from the Abu Dhabi government sources.

“Our investment decisions have always been driven solely by economic objectives,”  Ahmed Bin Zayed Al Nahyan, managing director of ADIA, said in a statement.

“For, while ADIA is owned by the Government of Abu Dhabi, it manages its portfolio independently of both the Government and other affiliates that also invest funds on its behalf.”