Year	current US$
1990	8788573391.79532
1991	3832960152.27232
1992	4516848689.36356
1993	7733919414.30905
1994	2878938286.66051
1995	5977971483.04664
1996	11389521300.7587
1997	10101184432.6893
1998	30827303022.2212
1999	15186272316.4194
2000	15237565946.3644
2001	7650896510.35774
2002	10791018033.1943
2003	12996292800.066
2004	28978291462.7532
2005	45553548715.5893
2006	56012638599.0538
2007	65540507699.143
2008	81334733349.9067
2009	46936211826.0476
2010	65947073580.3028
2011	87875324672.5703
2012	95730039858.5613
2013	114471495507.99
2014	116149267417.688
2015	107184680549.461
2016	104334519626.806
2017	106753840036.802
2018	116073592052.461
2019	92647877257.8989
2020	92809838743.3678