Year US Dollars, Sum Over Component Sub-periods 1995-01-01 23677890000.000000 1996-01-01 21959420000.000000 1997-01-01 23169070000.000000 1998-01-01 30982150000.000000 1999-01-01 46547760000.000000 2000-01-01 43262530000.000000 2001-01-01 50515340000.000000 2002-01-01 49103490000.000000 2003-01-01 42540180000.000000 2004-01-01 32580740000.000000 2005-01-01 84896040000.000000 2006-01-01 71888040000.000000 2007-01-01 96241480000.000000 2008-01-01 64061600000.000000 2009-01-01 24216430000.000000 2010-01-01 33625879999.999996 2011-01-01 38557550000.000000 2012-01-01 25093630000.000000 2013-01-01 4874570000.000000