Year	US Dollars, Sum Over Component Sub-periods
1995-01-01	29683390000
1996-01-01	29032580000
1997-01-01	27860160000
1998-01-01	29965730000
1999-01-01	31190240000
2000-01-01	32264420000
2001-01-01	33601070000
2002-01-01	35730130000
2003-01-01	42829390000
2004-01-01	49046910000
2005-01-01	51157110000
2006-01-01	53205910000
2007-01-01	68841890000
2008-01-01	84763880000
2009-01-01	75700150000
2010-01-01	81976730000
2011-01-01	88930290000
2012-01-01	91629090000
2013-01-01	97909500000