Year	US Dollars, Sum Over Component Sub-periods
1984-01-01	113000000
1985-01-01	99000000
1986-01-01	125000000
1987-01-01	115000000
1988-01-01	354000000
1989-01-01	663000000
1990-01-01	684000000
1991-01-01	810000000
1992-01-01	844000000
1993-01-01	636000000
1994-01-01	608000000
1995-01-01	885000000
1996-01-01	722000000
1997-01-01	805000000
1998-01-01	940000000
1999-01-01	783000000
2000-01-01	982000000
2001-01-01	3352000000
2002-01-01	1082000000
2003-01-01	1702000000
2004-01-01	2785000000
2005-01-01	10031000000
2006-01-01	20185000000
2007-01-01	22047000000
2008-01-01	19762000000
2009-01-01	8629000000
2010-01-01	9058000000
2011-01-01	16171000000
2012-01-01	13224000000
2013-01-01	12918000000