Year	current US$
1980	2084254667.875311
1981	2135027843.6471248
1982	1971493973.1961956
1983	2212958890.584328
1984	1838586651.8626673
1985	1333564472.163954
1986	1570780190.3868303
1987	2203837707.934989
1988	2244875186.279288
1989	2417343500.553061
1990	2841856924.5949764
1991	3109418773.3018503
1992	3465140143.0708265
1993	3274436506.921293
1994	3687904127.4665585
1995	4099369796.9581633
1996	4017399750.520369
1997	4169089350.12919
1998	3914088476.6412144
1999	3801614375.2893043
2000	3941859827.073524
2001	3545664831.532756
2002	3395021292.134229
2003	5160199895.594686
2004	6690279259.401338
2005	7128926754.832944
2006	7932053612.330245
2007	8567561173.237892
2008	8357762966.898383
2009	8658629373.845747
2010	10835987790.32093
2011	12010748072.780573
2012	12519827110.130365
2013	12011999579.490414
2014	12363536657.71856
2015	11317050632.43285
2016	10511261596.570263
2017	12661495881.247652
2018	13176748522.851316
2019	12234173555.549404
2020	10539865094.819881
2021	11934183891.662954
2022	12080731342.824997
2023	11781635021.214546