Year	US Dollars, Sum Over Component Sub-periods
1975-01-01	5547000000
1976-01-01	6390200000
1977-01-01	7728200000
1978-01-01	8607500000
1979-01-01	11228600000
1980-01-01	14272700000
1981-01-01	14082400000
1982-01-01	13149400000
1983-01-01	12581100000
1984-01-01	13565900000
1985-01-01	13621000000
1986-01-01	16291300000
1987-01-01	19532800000
1988-01-01	22286300000
1989-01-01	23380200000
1990-01-01	26627600000
1991-01-01	23076000000
1992-01-01	24070100000
1993-01-01	23549000000
1994-01-01	29649400000
1995-01-01	40483500000
1996-01-01	40756900000
1997-01-01	41215200000
1998-01-01	43347800000
1999-01-01	41967400000
2000-01-01	45821400000
2001-01-01	42912400000
2002-01-01	44647700000
2003-01-01	52527100000
2004-01-01	60957700000
2005-01-01	65355400000
2006-01-01	77114000000
2007-01-01	90000800000
2008-01-01	96332300000
2009-01-01	62660800000
2010-01-01	69503800000
2011-01-01	79057700000
2012-01-01	73470800000
2013-01-01	74612600000