Year	current US$
1990	-1833049489.09211
1991	91490897.8773708
1992	-329043122.039299
1993	-105888274.195433
1994	-470121487.925814
1995	-2421455577.82852
1996	-3716833968.32353
1997	-3104906162.46499
1998	-4393304331.79666
1999	-3546602695.61597
2000	-1528799626.56373
2001	-1096783662.48271
2002	-1627995832.11261
2003	-2722927972.36006
2004	-2355921180.52987
2005	-3758501627.44231
2006	227926832.953011
2007	1400410352.37915
2008	15562253019.0914
2009	10812527321.8593
2010	7512405790.75862
2011	8380329558.74051
2012	6194664116.4828
2013	11302341718.872
2014	12430742483.098
2015	11892480429.3726
2016	7419162011.9946
2017	7218057139.1086
2018	3519296885.79543
2019	6418406992.30635
2020	10386751198.9413
2021	9976288434.85591