Year	current US$
1975	1646158216.0517306
1976	1502234241.4698343
1977	1417359992
1978	1682777187.9191904
1979	1928666683.3333333
1980	2085833250
1981	2428416658.3333335
1982	2568270235.46781
1983	2718422681.3091226
1984	2808267157.264274
1985	2841830014.340747
1986	3097102218.2168164
1987	3226168635.4227924
1988	3868303785.9895716
1989	3920605197.2606473
1990	4031457727.028477
1991	4380035951.853025
1992	3733712694.8775063
1993	4037891666.6666665
1994	4572853061.224489
1995	4821154644.578314
1996	5101365382.379655
1997	5478432403.997896
1998	5393623890.234059
1999	5379455481.972038
2000	5996568698.421891
2001	6648513545.578232
2002	6701740981.166863
2003	7143824885.088958
2004	8203686329.036044
2005	9341300879.963234
2006	10659720980.52256
2007	12273859987.941126
2008	15115315365.531414
2009	15714025684.684275
2010	20294537758.93528
2011	26036320750.246292
2012	25931317219.668037
2013	26926559240.835194
2014	27646502179.96499
2015	30122661401.21474
2016	30556587812.46788
2017	36023363843.96033
2018	41308680713.23655
2019	43100341369.21215
2020	41698768820.21491
2021	47555780286.65665
2022	53974416729.67767
2023	50828698169.39015