Year	US Dollars, Sum Over Component Sub-periods
1994-01-01	50344450000
1995-01-01	62395300000
1996-01-01	68205940000
1997-01-01	71767430000
1998-01-01	58669470000
1999-01-01	39463350000
2000-01-01	44679090000
2001-01-01	53504200000
2002-01-01	60595910000
2003-01-01	75715810000
2004-01-01	96774190000
2005-01-01	124592610000
2006-01-01	162427910000
2007-01-01	221286960000
2008-01-01	292052820000
2009-01-01	190614360000
2010-01-01	246359000000
2011-01-01	323767090000