Year	US Dollars, Sum Over Component Sub-periods
1998-01-01	5584000000.000000
1999-01-01	8330000000.000000
2000-01-01	12551000000.000000
2001-01-01	9390000000.000000
2002-01-01	8344000000.000000
2003-01-01	16094999999.999998
2004-01-01	20557000000.000000
2005-01-01	39273000000.000000
2006-01-01	54563000000.000000
2007-01-01	83476000000.000000
2008-01-01	111786999999.999980
2009-01-01	108251000000.000000
2010-01-01	142424000000.000000
2011-01-01	144200000000.000000
2012-01-01	160500000000.000000