Year	constant 2021 international $
1990	4372.826660306468
1991	4370.009378148083
1992	4434.729136510009
1993	4523.010717954992
1994	4615.584026161322
1995	4729.812467364853
1996	4922.060616549551
1997	5089.416257766565
1998	5149.668071225934
1999	5255.965352591871
2000	5450.03670051255
2001	5560.767154889461
2002	5725.535855129303
2003	5964.69304304855
2004	6323.105192137474
2005	6666.810017379986
2006	7086.9686441646045
2007	7569.168303849895
2008	7870.4427097618445
2009	8039.853916229326
2010	8545.632193045809
2011	8935.692815900473
2012	9268.264565966454
2013	9629.22578090456
2014	9971.05993546862
2015	10301.592910081199
2016	10665.0960557274
2017	11079.36232064124
2018	11479.976438504838
2019	11789.847927282373
2020	11446.920909851013
2021	12133.562123000109
2022	12506.901191128973
2023	12952.663049535335
