Year	constant 2021 international $
1990	2877.621469504502
1991	2880.249442563782
1992	2954.455673286784
1993	2991.8093542717843
1994	3083.4380569453833
1995	3200.267235779087
1996	3354.9295241331592
1997	3422.3954745772053
1998	3531.1387776913816
1999	3690.328867055535
2000	3775.9500811450007
2001	3866.6887124085715
2002	3923.3155255634174
2003	4093.7943156453152
2004	4307.608008874729
2005	4529.507274107504
2006	4778.876335009611
2007	5038.491425250242
2008	5150.511075757758
2009	5359.4184905310085
2010	5607.427171147166
2011	5769.418285728953
2012	5952.443364740044
2013	6182.327638235676
2014	6477.326151542218
2015	6801.018242094316
2016	7239.735317090242
2017	7557.290960278941
2018	7896.7491692249605
2019	8110.300372379603
2020	7688.795383798321
2021	8143.3978836880515
2022	8544.261917316933
2023	8948.785329266528