Year	constant 2021 international $
2000	18265.13449937009
2001	18741.084836915074
2002	19302.774868367153
2003	19893.432591707107
2004	20490.51655462929
2005	21508.610716101237
2006	22648.330202628975
2007	23838.92014417844
2008	24558.21482734775
2009	23051.028385758975
2010	23558.67109907978
2011	24180.8943660603
2012	24846.37466790781
2013	24837.098739538793
2014	24776.530880033613
2015	25234.8926415352
2016	25331.111134072205
2017	26097.85430040645
2018	26604.736335502275
2019	27510.0277072381
2020	25891.111848849356
2021	27063.377955507578
2022	27407.262621029353