Year	US Dollars, Sum Over Component Sub-periods
1988-01-01	2397110000.000000
1989-01-01	2656330000.000000
1990-01-01	4980630000.000000
1991-01-01	5114970000.000000
1992-01-01	7420550000.000000
1993-01-01	7816200000.000000
1994-01-01	7587160000.000000
1995-01-01	6660370000.000000
1996-01-01	7713020000.000000
1997-01-01	5816860000.000000
1998-01-01	3917560000.000000
1999-01-01	6811830000.000000
2000-01-01	6808210000.000000
2001-01-01	6956770000.000000
2002-01-01	8258719999.999999
2003-01-01	10023410000.000000
2004-01-01	9206920000.000000
2005-01-01	7460860000.000000
2006-01-01	3061410000.000000
2007-01-01	393550000.000000
2008-01-01	833110000.000000
2009-01-01	8835290000.000000
2010-01-01	9494010000.000000
2011-01-01	10326260000.000000
2012-01-01	8238590000.000000
2013-01-01	8744420000.000000