Year	US Dollars, Sum Over Component Sub-periods
1995-01-01	3199670000
1996-01-01	3551160000
1997-01-01	4022720000
1998-01-01	4264910000
1999-01-01	5442030000
2000-01-01	6812460000
2001-01-01	6420660000
2002-01-01	8089640000
2003-01-01	9975630000
2004-01-01	12976460000
2005-01-01	16210500000
2006-01-01	20780090000
2007-01-01	27168900000
2008-01-01	29158020000
2009-01-01	24421290000
2010-01-01	26178770000
2011-01-01	29462460000
2012-01-01	30017390000
2013-01-01	31714990000