Year	US Dollars, Sum Over Component Sub-periods
1980-01-01	16241000000
1981-01-01	19881000000
1982-01-01	19608000000
1983-01-01	22024000000
1984-01-01	26148000000
1985-01-01	25179000000
1986-01-01	33384000000
1987-01-01	46459000000
1988-01-01	59942000000
1989-01-01	61462000000
1990-01-01	63902000000
1991-01-01	71043000000
1992-01-01	77720000000
1993-01-01	83763000000
1994-01-01	94978000000
1995-01-01	124978000000
1996-01-01	129666000000
1997-01-01	138221000000
1998-01-01	133912000000
1999-01-01	144857000000
2000-01-01	178049000000
2001-01-01	151172000000
2002-01-01	164190000000
2003-01-01	199692000000
2004-01-01	260143000000
2005-01-01	289873000000
2006-01-01	336495000000
2007-01-01	389569000000
2008-01-01	434652000000
2009-01-01	358190000000
2010-01-01	461445000000
2011-01-01	551765000000
2012-01-01	554175000000
2013-01-01	570887000000