America's current account (CA) deficit (the trade deficit plus net income payments and net unilateral transfers) rose as a share of gross domestic product (GDP) from 1991 to a record high of about 6% of GDP in 2006. It began falling in 2007, and reached 3% of GDP in 2009. The CA deficit is financed by foreign capital inflows. Many observers have questioned whether such large inflows are sustainable. Even at 3% of GDP, the deficit is probably still too large to be permanently sustained, and many economists fear that the decline is temporary and caused by the recession.