Year	constant 2021 international $
1990	27452.78834683935
1991	28430.478262078763
1992	26219.830036067437
1993	26258.456909940076
1994	27124.218391869825
1995	27402.960851216387
1996	27614.715493493055
1997	28268.996013583088
1998	29625.87695015954
1999	25760.47571200682
2000	22833.64186495059
2001	24052.200882185047
2002	24227.169860611702
2003	23706.14728555157
2004	21801.820060983475
2005	22856.701760299824
2006	20428.60197773153
2007	20517.494197422082
2008	18862.97370927791
2009	19771.946974008482
2010	19444.828716105036
2011	19266.525403982065
2012	20975.52431585849
2013	21754.659365616266
2014	23760.792783569817
2015	23016.950205256268
2016	23076.555243780134
2017	22948.738288993376
2018	21855.172342922357
2019	21409.17969466687
2020	22035.36436334576
2021	16490.96057682117
2022	18924.675473760428