Year	US Dollars, Sum Over Component Sub-periods
1972-01-01	1590310000.000000
1973-01-01	2038170000.000000
1974-01-01	2122350000.000000
1975-01-01	2444560000.000000
1976-01-01	2697650000.000000
1977-01-01	3021740000.000000
1978-01-01	3491120000.000000
1979-01-01	3558130000.000000
1980-01-01	4138050000.000000
1981-01-01	4055480000.000000
1982-01-01	4076890000.000000
1983-01-01	5432100000.000000
1984-01-01	5294400000.000000
1985-01-01	5566810000.000000
1986-01-01	7507180000.000000
1987-01-01	9433970000.000000
1988-01-01	9557410000.000000
1989-01-01	9983000000.000000
1990-01-01	11461350000.000000
1991-01-01	11862860000.000000
1992-01-01	12288830000.000000
1993-01-01	12862490000.000000
1994-01-01	12808890000.000000
1995-01-01	14350890000.000000
1996-01-01	14024800000.000000
1997-01-01	14897890000.000000
1998-01-01	15939950000.000000
1999-01-01	16661310000.000002
2000-01-01	17901020000.000000
2001-01-01	17297630000.000000
2002-01-01	18113570000.000000
2003-01-01	21495880000.000000
2004-01-01	24430900000.000000
2005-01-01	26942030000.000000
2006-01-01	31390100000.000000
2007-01-01	37906550000.000000
2008-01-01	46347000000.000000
2009-01-01	42282520000.000000
2010-01-01	46898990000.000000
2011-01-01	49734290000.000000
2012-01-01	43933740000.000000
2013-01-01	42625990000.000000