Year	constant 2021 international $
1990	12502.247963380341
1991	12414.645177496426
1992	12144.008419642632
1993	12537.785576425327
1994	13062.235607261287
1995	13402.910468668464
1996	13490.900865780592
1997	13741.203353987863
1998	13586.691433668386
1999	13457.774665990339
2000	13857.593144434575
2001	13865.859052363094
2002	14109.931835018426
2003	14102.695462434503
2004	14746.029679559379
2005	15049.144863249887
2006	15477.738791431922
2007	16248.658636095788
2008	16908.634005630804
2009	16727.16406395238
2010	17818.24622784209
2011	18355.18059551809
2012	18540.137313021518
2013	18932.123362361166
2014	18865.00618265864
2015	18042.809377306206
2016	17310.736279351175
2017	17401.3227717581
2018	17571.671018609355
2019	17650.4413769944
2020	16958.896347548467
2021	17672.916803465458
2022	18122.57463191689
2023	18554.10534211974