Year	US Dollars, Sum Over Component Sub-periods
1984-01-01	146000000
1985-01-01	298000000
1986-01-01	341000000
1987-01-01	382000000
1988-01-01	374000000
1989-01-01	684000000
1990-01-01	917000000
1991-01-01	935000000
1992-01-01	1012000000
1993-01-01	1135000000
1994-01-01	890000000
1995-01-01	1488000000
1996-01-01	1577000000
1997-01-01	1900000000
1998-01-01	2481000000
1999-01-01	2350000000
2000-01-01	2836000000
2001-01-01	2753000000
2002-01-01	2486000000
2003-01-01	2246000000
2004-01-01	2651000000
2005-01-01	3644000000
2006-01-01	4418000000
2007-01-01	6423000000
2008-01-01	6889000000
2009-01-01	5164000000
2010-01-01	4477000000
2011-01-01	3952000000
2012-01-01	5034000000
2013-01-01	4523000000