Year	US Dollars, Sum Over Component Sub-periods
1987-01-01	7217150000.000000
1988-01-01	8811940000.000000
1989-01-01	8827630000.000000
1990-01-01	9182710000.000000
1991-01-01	9578780000.000000
1992-01-01	9742260000.000000
1993-01-01	10457750000.000000
1994-01-01	11966720000.000000
1995-01-01	13396070000.000000
1996-01-01	14322680000.000000
1997-01-01	14262060000.000000
1998-01-01	12235320000.000000
1999-01-01	12639740000.000000
2000-01-01	13445890000.000000
2001-01-01	13856010000.000000
2002-01-01	14455090000.000000
2003-01-01	16757619999.999998
2004-01-01	20460390000.000000
2005-01-01	21984440000.000000
2006-01-01	22598690000.000000
2007-01-01	27199660000.000000
2008-01-01	30768690000.000000
2009-01-01	25187340000.000000
2010-01-01	31885270000.000000
2011-01-01	38356150000.000000
2012-01-01	37855750000.000000
2013-01-01	39870910000.000000