Year	current US$
1970	4466735993.264993
1971	5000430794.954792
1972	5807495690.058841
1973	7469620100.452007
1974	10181292908.153046
1975	10730993243.339113
1976	12168150478.280987
1977	14608238751.24848
1978	16966306081.204859
1979	20881578098.24339
1980	27438523048.757854
1981	27861833675.199593
1982	27745498253.758778
1983	27080519124.359783
1984	28011425418.31652
1985	28142756692.135334
1986	29954795791.237766
1987	35074153055.12306
1988	38433795911.26999
1989	39127757025.450676
1990	44747769951.55544
1991	46967025003.52397
1992	50718222735.88066
1993	50463646244.4272
1994	53830919903.98012
1995	61225931020.14277
1996	64221535016.176506
1997	67849318093.39371
1998	69616675805.43721
1999	73166388467.0884
2000	76825026679.50821
2001	77134382257.57309
2002	83440932716.70726
2003	98713950502.90433
2004	114440630217.56236
2005	128662946618.18735
2006	144640135773.94022
2007	169972566983.96265
2008	185058112528.30103
2009	164140722544.82175
2010	174536267000.42288
2011	195163537455.55945
2012	196184993723.7082
2013	203747883009.3781
2014	210645325825.07675
2015	195342695295.0269
2016	202183604189.06195
2017	222189517961.59073
2018	240866904455.2956
2019	243792423417.3896
2020	219068216684.6332
2021	254207327038.41492
2022	281850778773.2686
2023	298978248910.6324