Year	US Dollars, Sum Over Component Sub-periods
1960-01-01	627519291.408348
1961-01-01	615180427.241634
1962-01-01	625422587.562665
1963-01-01	705125380.106650
1964-01-01	819702262.324267
1965-01-01	942721724.576160
1966-01-01	972685083.093543
1967-01-01	1109164253.634900
1968-01-01	1231539667.471330
1969-01-01	1353204470.678710
1970-01-01	1527924717.411880
1971-01-01	1683357628.305850
1972-01-01	1873192833.934480
1973-01-01	2677999097.837180
1974-01-01	3741432797.056490
1975-01-01	3813556533.090530
1976-01-01	4213923843.765320
1977-01-01	4322723360.143650
1978-01-01	5047178821.102500
1979-01-01	5610328638.497650
1980-01-01	6562286235.464010
1981-01-01	7433078714.574610
1982-01-01	7535178533.699560
1983-01-01	6985896867.556780
1984-01-01	8211744422.203070
1985-01-01	7671076602.506270
1986-01-01	7683866331.697480
1987-01-01	8758347574.027310
1988-01-01	10858901693.856400
1989-01-01	13532919140.076800
1990-01-01	14101860640.497200
1991-01-01	13895368080.839500
1992-01-01	14035907631.136300
1993-01-01	13932553758.422300
1994-01-01	16083852235.998800
1995-01-01	17875477779.767500
1996-01-01	19331445055.016800
1997-01-01	19678418426.958000
1998-01-01	18508446900.709700
1999-01-01	19201548720.154900
2000-01-01	19273975181.361400
2001-01-01	17466899179.745500
2002-01-01	18436890435.695600
2003-01-01	22101251452.820500
2004-01-01	28282119822.448900
2005-01-01	30981502405.829800
2006-01-01	33201631628.490700
2007-01-01	41890352314.482300
2008-01-01	48637995824.634700
2009-01-01	42236044221.732600
2010-01-01	51373927932.610700
2011-01-01	61812335021.452600
2012-01-01	64566967174.222500
2013-01-01	63837896514.292600