Year	current US$
1990	-2044085893.7494
1991	-367184507.765964
1992	1521881357.72781
1993	4841654202.17315
1994	6506274153.90975
1995	7051885308.87915
1996	11857081676.1644
1997	12126510834.7563
1998	7330730422.73795
1999	8249050710.26603
2000	8481062888.39246
2001	6618313360.66608
2002	8850167286.9638
2003	10831053186.1657
2004	14624962804.2553
2005	17114959258.1051
2006	21184667810.5804
2007	27184871018.1163
2008	32199623990.0364
2009	20685226210.9791
2010	28637055258.557
2011	40034844874.5086
2012	32589006383.4768
2013	30320505716.7822
2014	23296188185.525
2015	17366308114.6829
2016	17431084437.3041
2017	14810726320.3192
2018	3940701170.79813
2019	-167843148.209286
2020	1078580445.5157
2021	1947833128.48401