Year	current US$
1960	2467200000
1961	2350300000
1962	2116300000
1963	2677500000
1964	4270100000
1965	4637100000
1966	5851200000
1967	6173253000
1968	7678128000
1969	8409930000
1970	9309540000
1971	11214818000
1972	11756927000
1973	22026356000
1974	62611995000
1975	57348841000
1976	81600513000
1977	88319925000
1978	83611664000
1979	133122674000
1980	204581594000
1981	216256619191.33002
1982	164800465344.77002
1983	127997447061.73001
1984	120505052111.632
1985	106813576914.94
1986	78707858546.79001
1987	91490155062.01001
1988	90801874203.98
1989	110217128588.83
1990	140608530003.57
1991	124926160810.92001
1992	127674279691.37
1993	118572977185.95
1994	122156747926.48
1995	142809857638.29
1996	168276801991.96002
1997	179701662701.129
1998	133844972451.90099
1999	168284701233.28
2000	311689837922
2001	287543454449
2002	289902266091
2003	362411790575
2004	459967253904
2005	598453935479
2006	701093094927
2007	808678373624
2008	1153781166256
2009	661019060985
2010	938889471333
2011	1182229118443
2012	1381142461660
2013	1308044388611
2014	1212121832638
2015	756919896164
2016	658652978375
2017	749685202021
2018	959992434266
2019	913751905618
2020	694412629570