Year	current US$
1960	38000000
1961	48000000
1962	41000000
1963	38000000
1964	54000000
1965	77000000
1966	67000000
1967	79000000
1968	93000000
1969	127000000
1970	230000000
1971	234000000
1972	209000000
1973	219000000
1974	282000000
1975	347000000
1976	277000000
1977	292000000
1978	292000000
1979	361000000
1980	456000000
1981	408000000
1982	367000000
1983	305000000
1984	311000000
1985	348000000
1986	458000000
1987	626000000
1988	604000000
1989	766000000
1990	883000000
1991	863000000
1992	917000000
1993	858000000
1994	876000000
1995	957000000
1996	995000000
1997	929000000
1998	929000000
1999	1006000000
2000	924000000
2001	931000000
2002	1008000000
2003	1541000000
2004	1636000000
2005	1774000000
2006	2117000000
2007	2809000000
2008	3233000000
2009	2574000000
2010	3312000000
2011	3698000000
2012	3245000000
2013	3202000000
2014	3323000000
2015	2689000000
2016	2395000000
2017	2511000000
2018	2805000000
2019	2944000000
2020	2592000000
2021	2780000000
2022	3389000000
2023	3196000000