Year	current US$
1978	11100000
1979	13700000
1980	17700000
1981	18900000
1982	15700000
1983	17800000
1984	19100000
1985	19200000
1986	26666666.666666687
1987	36614814.81481479
1988	35355555.55555556
1989	36622222.22222218
1990	41092592.59259263
1991	43796296.29629626
1992	55911111.111111075
1993	60637037.03703708
1994	60796296.2962963
1995	72051851.85185188
1996	95862962.96296299
1997	99885185.18518493
1998	105848148.14814793
1999	125681481.4814814
2000	126478698.69686118
2001	148419495.18213895
2002	163942217.2206625
2003	170140958.76539475
2004	173619292.68574035
2005	182663282.74262115
2006	190234714.60161948
2007	205162107.15022725
2008	176597745.1210331
2009	176322911.2828711
2010	181841891.88841552
2011	188890470.07006544
2012	194205484.8849233
2013	202841723.6688445
2014	204759708.89600298
2015	236132849.5448693
2016	254249196.80317223
2017	247640680.70802918
2018	274186425.09333414
2019	282664855.762464
2020	125314279.60818042
2021	100870081.20355152
2022	225311027.40740725
2023	292042551.8518522