Year	US Dollars, Sum Over Component Sub-periods
1995-01-01	26870000000
1996-01-01	28668000000
1997-01-01	28541000000
1998-01-01	26690000000
1999-01-01	30201000000
2000-01-01	34906000000
2001-01-01	31881000000
2002-01-01	31916000000
2003-01-01	33182000000
2004-01-01	39592000000
2005-01-01	43900000000
2006-01-01	47459000000
2007-01-01	55982000000
2008-01-01	64460000000
2009-01-01	46488000000
2010-01-01	58367000000
2011-01-01	73120000000
2012-01-01	72414000000
2013-01-01	70994000000
2014-01-01	70695000000