Year	US Dollars, Sum Over Component Sub-periods
1988-01-01	25882450000.00000
1989-01-01	26568270000.00000
1990-01-01	31650910000.00000
1991-01-01	32464650000.00000
1992-01-01	33855330000.00000
1993-01-01	29849540000.00000
1994-01-01	34755720000.00000
1995-01-01	44107490000.00000
1996-01-01	43498820000.00000
1997-01-01	42569630000.00000
1998-01-01	44249990000.00000
1999-01-01	43010130000.00000
2000-01-01	43969310000.00000
2001-01-01	43973710000.00000
2002-01-01	47189750000.00000
2003-01-01	54649980000.00000
2004-01-01	65566259999.99999
2005-01-01	75294370000.00000
2006-01-01	87629490000.00000
2007-01-01	100266130000.00000
2008-01-01	113494810000.00000
2009-01-01	81963020000.00000
2010-01-01	85349660000.00000
2011-01-01	100444920000.00000
2012-01-01	96844640000.00000
2013-01-01	101050000000.00000