Year	current US$
1980	6143538461.538462
1981	7273142857.142858
1982	6807600000
1983	5562444444.444445
1984	6173777777.777778
1985	5453789473.684211
1986	6568882352.941176
1987	8730076923.076923
1988	7688647058.82353
1989	6898055555.555555
1990	4534818181.818182
1991	2939193548.387097
1992	1454123711.3402061
1993	829093281.1480757
1994	850977859.7785978
1995	5155260454.660494
1996	1516046523.393802
1997	2536625405.275885
1998	3839847349.232372
1999	2080662785.002993
2000	1819754388.8568368
2001	1706600149.7682984
2002	2059240963.420359
2003	2515019316.6511035
2004	3212886219.302918
2005	3908192001.565306
2006	5144920016.905379
2007	6568833449.965011
2008	9365834104.270605
2009	10552130814.705706
2010	9813882600.149122
2011	12422986976.015942
2012	10102105366.879065
2013	11420243090.921438
2014	11676584703.16533
2015	11117013841.615612
2016	12882645310.996662
2017	14295936001.848322
2018	15757008030.916008
2019	16675700875.736935
2020	15677426268.761316
2021	19251168893.995285
2022	21305115753.203403
2023	22364240473.218964