Year US Dollars, Sum Over Component Sub-periods 1982-01-01 6684870000 1983-01-01 6446590000 1984-01-01 6438560000 1985-01-01 6199430000 1986-01-01 7470670000 1987-01-01 9406880000 1988-01-01 10731530000 1989-01-01 11758350000 1990-01-01 14025550000 1991-01-01 15181240000 1992-01-01 15913230000 1993-01-01 12805840000 1994-01-01 14188750000 1995-01-01 16367550000 1996-01-01 17484280000 1997-01-01 18348680000 1998-01-01 19715620000 1999-01-01 22149560000 2000-01-01 23089200000 2001-01-01 23635910000 2002-01-01 25357540000 2003-01-01 29663310000 2004-01-01 37609350000 2005-01-01 42441340000 2006-01-01 48780650000 2007-01-01 62077330000 2008-01-01 68766070000 2009-01-01 55799170000 2010-01-01 61179150000 2011-01-01 71414480000 2012-01-01 71685730000 2013-01-01 81880480000