Year	US Dollars, Sum Over Component Sub-periods
1995-01-01	12900000000
1996-01-01	11810000000
1997-01-01	11163000000
1998-01-01	11667000000
1999-01-01	10683000000
2000-01-01	10304000000
2001-01-01	10320000000
2002-01-01	11054000000
2003-01-01	13210000000
2004-01-01	16110000000
2005-01-01	18155000000
2006-01-01	21672000000
2007-01-01	27409000000
2008-01-01	30014000000
2009-01-01	23042000000
2010-01-01	25129000000
2011-01-01	29826000000
2012-01-01	27803000000
2013-01-01	29239000000