Year	current US$
1975	82000000
1976	81000000
1977	61000000
1978	113000000
1979	73000000
1980	111000000
1981	124000000
1982	57000000
1983	29000000
1984	46000000
1985	40000000
1986	40000000
1987	42000000
1988	32000000
1989	120000000
1990	573000000
1991	1110000000
1992	1791000000
1993	1247000000
1994	2068000000
1995	2952000000
1996	2059000000
1997	1572000000
1998	1236000000
1999	1501000000
2000	1349591000
2001	1448914000
2002	2003791000
2003	2286680000
2004	2812514000
2005	2805358000
2006	3287162000
2007	3305694000
2008	3642585000
2009	2889159500
2010	3082801866.11
2011	3214602242.94
2012	2784072055.49
2013	2717675068.66
2014	2647908513.04
2015	2896909951.71
2016	2739786526.59
2017	2698770651.24
2018	2933489276.49
2019	3213621676.71
2020	3566219438.48
2021	4102018147.7
2022	4973758734.57
2023	4433700953.4