Year	US Dollars, Sum Over Component Sub-periods
1995-01-01	7514200000
1996-01-01	8480100000
1997-01-01	8691510000
1998-01-01	9940400000
1999-01-01	11465930000
2000-01-01	13213900000
2001-01-01	13323770000
2002-01-01	12430570000
2003-01-01	15547260000
2004-01-01	20952930000
2005-01-01	24181540000
2006-01-01	29876680000
2007-01-01	37752770000
2008-01-01	39017680000
2009-01-01	33532670000
2010-01-01	37381750000
2011-01-01	42376640000
2012-01-01	44384790000
2013-01-01	48409550000