Year	US Dollars, Sum Over Component Sub-periods
1995-01-01	29604000000
1996-01-01	29275000000
1997-01-01	29144000000
1998-01-01	30768000000
1999-01-01	32577000000
2000-01-01	34338000000
2001-01-01	35394000000
2002-01-01	37749000000
2003-01-01	44645000000
2004-01-01	52676000000
2005-01-01	56131000000
2006-01-01	59477000000
2007-01-01	74968000000
2008-01-01	91628000000
2009-01-01	87942000000
2010-01-01	92768000000
2011-01-01	98243000000
2012-01-01	101481000000
2013-01-01	108394000000