Year	current US$
1980	231.6598728299906
1981	244.01591429677666
1982	235.3584516950826
1983	258.65478715522136
1984	284.7764303701185
1985	309.13726879437627
1986	351.8228331067135
1987	302.38082723538645
1988	378.8658295996529
1989	388.31664161573553
1990	431.43512980438334
1991	474.3790433493286
1992	303.0142644228092
1993	247.95714779511675
1994	282.9982255450929
1995	358.6557030773774
1996	364.8887100327954
1997	411.688707080325
1998	450.1313227574441
1999	496.15304791652295
2000	806.0009908866041
2001	731.6649813258706
2002	684.9329833549011
2003	533.9814579709665
2004	652.7295590379055
2005	760.145211816136
2006	781.9865542539115
2007	978.5645463968584
2008	1050.4228631617232
2009	1145.0103629530768
2010	1148.842571620674
2011	1248.1745595603393
2012	1293.9687450346187
2013	1383.1900228907011
2014	1390.1149930684526
2015	1350.208896026622
2016	1236.2090583621628
2017	1306.1252725178977
2018	1418.4518914379862
2019	1253.9014637476505
2020	1209.2906103783732
2021	1724.9472096441787