The US Central Intelligence Agency (CIA) reports that in 2001 Palau's gross domestic product (GDP) was estimated at $174 million. The per capita GDP was estimated at $9,000. The annual growth rate of GDP was estimated at 1%. The average inflation rate in 2000 was 3.4%. The CIA defines GDP as the value of all final goods and services produced within a nation in a given year and computed on the basis of purchasing power parity (PPP) rather than value as measured on the basis of the rate of exchange. Foreign aid receipts amounted to about $1,753 per capita and accounted for approximately 25% of the gross national income (GNI).