Year	constant 2021 international $
1990	12495.987528521033
1991	12667.153693049555
1992	12799.22266444907
1993	13166.516702321936
1994	13624.6744112604
1995	13507.581895543604
1996	13809.250375233563
1997	14327.814402603666
1998	14529.980991515273
1999	14387.837539939897
2000	14685.715070395323
2001	14536.566338521297
2002	14413.185156780355
2003	14579.830178252556
2004	15168.843579199787
2005	15567.995790394185
2006	16173.015822303216
2007	16820.7234125479
2008	17245.301449257488
2009	16668.02963801067
2010	17561.015314604727
2011	18150.944019116007
2012	18426.12261617474
2013	18751.110998018787
2014	18830.27395795079
2015	18732.327847413442
2016	18509.26209627007
2017	18689.68373252044
2018	18826.400469523956
2019	18809.51194961296
2020	17422.83204264602
2021	18561.533219445177
2022	19190.916479763437
2023	19458.85826361633