Year	constant 2021 international $
1990	13331.933494930798
1991	13311.93760939349
1992	13322.876027820283
1993	13290.568661521615
1994	13631.080847995925
1995	13829.14418389788
1996	14207.287578805215
1997	14588.20396440601
1998	14891.861565538382
1999	15232.451731826583
2000	15574.59804908803
2001	15669.432066710773
2002	15865.361861674293
2003	16150.61625153541
2004	16599.587234403756
2005	16975.10659552796
2006	17648.665600670436
2007	18199.588138343508
2008	18292.301834889127
2009	17880.68715850667
2010	18037.623781814174
2011	18371.172724479187
2012	18697.40178434906
2013	18722.607287675273
2014	18893.324006093084
2015	18779.81902812743
2016	18673.16272280372
2017	18879.70156794892
2018	19246.777189588232
2019	19342.784356744476
2020	18051.022556537555
2021	19757.122425393023
2022	24595.27469680884
2023	28099.087171078514