Year	US Dollars, Sum Over Component Sub-periods
1960-01-01	1438690000.0000000
1961-01-01	1095020000.0000000
1962-01-01	-74850000.0000000
1963-01-01	551940000.0000000
1964-01-01	477760000.0000000
1965-01-01	-1151700000.0000000
1966-01-01	474930000.0000000
1967-01-01	2934840000.0000000
1968-01-01	3356590000.0000000
1969-01-01	2318540000.0000000
1970-01-01	1398820000.0000000
1971-01-01	1202370000.0000000
1972-01-01	1238330000.0000000
1973-01-01	5091690000.0000000
1974-01-01	10591190000.0000000
1975-01-01	4816220000.0000000
1976-01-01	3828490000.0000000
1977-01-01	4137990000.0000000
1978-01-01	9013670000.0000000
1979-01-01	-5689460000.0000000
1980-01-01	-15590640000.0000000
1981-01-01	-5348540000.0000000
1982-01-01	5571630000.0000000
1983-01-01	4193109999.9999995
1984-01-01	9484040000.0000000
1985-01-01	17395840000.0000000
1986-01-01	38333240000.0000000
1987-01-01	44039450000.0000000
1988-01-01	53907000000.0000000
1989-01-01	57080690000.0000000
1990-01-01	47287640000.0000000
1991-01-01	-24176990000.0000000
1992-01-01	-22688000000.0000000
1993-01-01	-19022520000.0000000
1994-01-01	-30449750000.0000000
1995-01-01	-29562240000.0000000
1996-01-01	-14013480000.0000000
1997-01-01	-9996840000.0000000
1998-01-01	-16310050000.0000000
1999-01-01	-27525520000.0000000
2000-01-01	-32678010000.0000000
2001-01-01	-10580000.0000000
2002-01-01	40213800000.0000000
2003-01-01	45782890000.0000000
2004-01-01	127187140000.0000000
2005-01-01	139930760000.0000000
2006-01-01	181673710000.0000000
2007-01-01	247662120000.0000000
2008-01-01	224616120000.0000000
2009-01-01	195504300000.0000000
2010-01-01	211019640000.0000000
2011-01-01	248104660000.0000000
2012-01-01	255230340000.0000000
2013-01-01	273401020000.0000300