Year	US Dollars, Sum Over Component Sub-periods
1994-01-01	5340020000
1995-01-01	7649730000
1996-01-01	9767610000
1997-01-01	13058010000
1998-01-01	16091000000
1999-01-01	11597130000
2000-01-01	11489150000
2001-01-01	11037840000
2002-01-01	12259970000
2003-01-01	24227640000
2004-01-01	24769000000
2005-01-01	36424410000
2006-01-01	59189100000
2007-01-01	78148520000
2008-01-01	110936160000
2009-01-01	73466830000
2010-01-01	85975860000
2011-01-01	102583110000