Year	US Dollars, Sum Over Component Sub-periods
1994-01-01	6699000000
1995-01-01	10675000000
1996-01-01	9747000000
1997-01-01	8915000000
1998-01-01	10840000000
1999-01-01	8363000000
2000-01-01	10399000000
2001-01-01	9753000000
2002-01-01	10037000000
2003-01-01	11174000000
2004-01-01	13471000000
2005-01-01	16258000000
2006-01-01	20592000000
2007-01-01	28914000000
2008-01-01	35549000000
2009-01-01	28986000000
2010-01-01	32718000000
2011-01-01	37562000000
2012-01-01	37897000000
2013-01-01	40160000000