Year	constant 2021 international $
1990	6510.998796209658
1991	7955.200171451903
1992	9246.470551692863
1993	9893.813500418582
1994	10632.414251917706
1995	11197.755396697816
1996	12091.921259814322
1997	11906.412383338316
1998	11999.108948964542
1999	11778.263251972574
2000	11819.614927811273
2001	11805.35544230273
2002	11523.379518992264
2003	10211.240984105953
2004	12442.298338155162
2005	12987.374734312785
2006	13182.38430196359
2007	14452.02802013007
2008	15286.098886099046
2009	16300.71916480011
2010	17321.810468786516
2011	17434.72459198792
2012	17441.58253394416
2013	16512.241037163196
2014	15202.597419217078
2015	14992.346191937968
2016	15459.490995926799
2017	16197.16548915917
2018	16019.201086207104
2019	15271.78012711075
2020	12157.803137885674
2021	11088.22998263508
2022	11718.961808658549
2023	11874.69058693557