Year	constant 2021 international $
1990	27036.38613336718
1991	27541.921865219774
1992	27523.661703707287
1993	26924.430253412156
1994	27325.75475886069
1995	27769.477153312586
1996	28438.677921415467
1997	29567.716769095816
1998	30549.571775058404
1999	31367.719878208736
2000	32464.19840556561
2001	33630.19966797551
2002	34821.59075739606
2003	36751.52910825462
2004	38516.109184476314
2005	38633.41697132597
2006	40694.74222049299
2007	41920.05440641463
2008	41668.789880275435
2009	39771.9777807835
2010	37544.92592280794
2011	33784.32056409613
2012	31560.331022458056
2013	30990.17742891806
2014	31345.700449821794
2015	31491.0356633333
2016	31468.228411713153
2017	31874.889271997334
2018	32472.51257930784
2019	33117.697815280975
2020	30096.824934127104
2021	33018.25441528658
2022	35328.78757422516
2023	36267.6918550159