Year	US Dollars, Sum Over Component Sub-periods
1996-01-01	1343820000
1997-01-01	2361720000
1998-01-01	3004680000
1999-01-01	1156810000
2000-01-01	6637170000
2001-01-01	6235510000
2002-01-01	1801730000
2003-01-01	7155580000
2004-01-01	1935840000
2005-01-01	3927120000
2006-01-01	10914310000
2007-01-01	3063180000
2008-01-01	4655940000
2009-01-01	2706540000
2010-01-01	2645820000
2011-01-01	11152680000
2012-01-01	8998310000
2013-01-01	3113450000