Year	current US$
1990	157165258.90835
1991	189064581.794573
1992	172271802.802852
1993	166160978.480468
1994	151122837.559643
1995	157151811.794833
1996	138321357.475114
1997	141057976.018352
1998	146368731.410973
1999	152836174.638893
2000	167054501.321937
2001	174079363.014569
2002	193466522.235857
2003	195629948.427968
2004	210916896.189201
2005	257324693.108401
2006	304585459.157128
2007	335307302.466584
2008	348085490.810275
2009	376702395.551957
2010	408954663.514135
2011	469200514.888651
2012	532540613.016544
2013	594140568.468768
2014	610114144.317003
2015	601569741.367785
2016	652512944.070805
2017	732626674.576595
2018	844301938.718539
2019	940769689.859766
2020	907128151.114488
2021	960771244.223429