Year	US Dollars, Sum Over Component Sub-periods
1994-01-01	7436500000
1995-01-01	8692820000
1996-01-01	12956390000
1997-01-01	11586870000
1998-01-01	2060370000
1999-01-01	10702580000
2000-01-01	26073910000
2001-01-01	26413050000
2002-01-01	24113290000
2003-01-01	28118720000
2004-01-01	34047750000
2005-01-01	49165660000
2006-01-01	58729050000
2007-01-01	57087590000
2008-01-01	83007800000
2009-01-01	48547400000
2010-01-01	53562760000
2011-01-01	73813090000
2012-01-01	76429070000
2013-01-01	64821690000