Year	current US$
1976	6837827677.483332
1977	8068819369.694672
1978	9944680019.360777
1979	12236399585.45158
1980	15659922547.425083
1981	15778951802.564857
1982	15920121011.685526
1983	16286312551.610027
1984	15821749095.925474
1985	17111807751.0697
1986	17682587989.4579
1987	18964802659.34315
1988	22057425237.739838
1989	22334133460.55821
1990	26932797033.82661
1991	28958353701.389233
1992	33453030029.09037
1993	34877880836.04811
1994	39657101982.51665
1995	45735569603.05842
1996	52725506555.742905
1997	58167658594.47809
1998	52178643238.13113
1999	56100745752.79716
2000	59901738823.10575
2001	60149845796.7193
2002	65927391065.06652
2003	80824032393.83199
2004	104900228738.78326
2005	125204921072.77107
2006	155465995538.20306
2007	186307022309.60098
2008	222822519994.1093
2009	202794098827.75897
2010	239732937097.09348
2011	267320335604.47128
2012	280868478890.56116
2013	289473187353.07886
2014	305822986786.21387
2015	308288300395.72546
2016	313173610222.1513
2017	355472109172.0848
2018	397770723974.6143
2019	419347099148.98914
2020	329360872140.6347
2021	385671538430.44684
2022	508998916433.4474
2023	566376194576.4198