Year	current US$
1990	1385235495.33577
1991	1411352083.52408
1992	1452106814.26148
1993	1672166652.998
1994	1735734215.72621
1995	1887932148.82414
1996	2031003441.83313
1997	1903317386.38173
1998	965685651.589668
1999	1365094082.20617
2000	1502090632.6481
2001	1365239286.96734
2002	1547800200.45873
2003	1807331748.18555
2004	1948309184.4588
2005	2104129176.89336
2006	2662300759.11899
2007	3128291176.28736
2008	3637429821.24506
2009	3832308927.94519
2010	5218305605.82747
2011	5971901628.11563
2012	6011024364.06511
2013	5788552025.53373
2014	5485135049.7576
2015	5184079271.86929
2016	5296346646.0902
2017	5581426929.4247
2018	5609798285.81328
2019	5922455677.49028
2020	5779557318.67729
2021	6304049458.82648