Year	constant 2021 international $
1990	7265.348207863922
1991	7097.336901331249
1992	6469.343693303041
1993	4764.728322679774
1994	4676.551257567776
1995	5203.992460531557
1996	5715.308544781142
1997	5929.948065508698
1998	6007.863201222503
1999	5944.016143838946
2000	5930.050937500661
2001	5979.758244669874
2002	6573.985194182534
2003	6543.346429611404
2004	7009.695739289678
2005	7781.43278819043
2006	8373.928137830215
2007	9205.887001387717
2008	9865.308923121389
2009	9589.347624768237
2010	9644.123986518402
2011	9610.845737423728
2012	10046.991085717562
2013	10158.144066145014
2014	10262.847014879777
2015	9991.602500089355
2016	9390.918270860879
2017	9049.962667176456
2018	8626.725815727757
2019	8280.180391350708
2020	7562.087366742246
2021	7414.2789578320235
2022	7407.105292262773
2023	7247.4764417494125