The value of the trust is estimated to have shrunk from A$1.3 billion in 1991 to A$138 million in 2002. Nauru currently lacks money to perform many of the basic functions of government; for example, the National Bank of Nauru is insolvent. The CIA World Factbook estimated a GDP per capita of US$5,000 in 2005. The Asian Development Bank 2007 economic report on Nauru estimated GDP per capita at US$2,400 to US$2,715.