Year	US Dollars, Sum Over Component Sub-periods
1987-01-01	119000000
1988-01-01	137000000
1989-01-01	131000000
1990-01-01	149000000
1991-01-01	147000000
1992-01-01	145000000
1993-01-01	136000000
1994-01-01	267000000
1995-01-01	302000000
1996-01-01	341000000
1997-01-01	381000000
1998-01-01	402000000
1999-01-01	440000000
2000-01-01	393000000
2001-01-01	434000000
2002-01-01	567000000
2003-01-01	693000000
2004-01-01	811000000
2005-01-01	1044000000
2006-01-01	907000000
2007-01-01	1054000000
2008-01-01	1065000000
2009-01-01	957000000
2010-01-01	983000000
2011-01-01	1218000000
2012-01-01	1451000000
2013-01-01	1454000000