Year	US Dollars, Sum Over Component Sub-periods
1988-01-01	25882400000.000000
1989-01-01	26568300000.000000
1990-01-01	31650900000.000000
1991-01-01	32464700000.000000
1992-01-01	33855300000.000004
1993-01-01	29849500000.000000
1994-01-01	34755700000.000000
1995-01-01	44107500000.000000
1996-01-01	43498800000.000000
1997-01-01	42569600000.000000
1998-01-01	44250000000.000000
1999-01-01	43010100000.000000
2000-01-01	43969300000.000000
2001-01-01	43973700000.000000
2002-01-01	47189800000.000000
2003-01-01	54650000000.000000
2004-01-01	65566300000.000000
2005-01-01	75294400000.000000
2006-01-01	87629500000.000000
2007-01-01	100266100000.000000
2008-01-01	113494800000.000000
2009-01-01	81963000000.000000
2010-01-01	85349700000.000000
2011-01-01	100444900000.000000
2012-01-01	96844600000.000000
2013-01-01	101050000000.000000