Year	constant 2015 US$
2000	2454.879393001007
2001	2486.2366561785448
2002	2520.1300970650996
2003	2563.095587807735
2004	2678.4936176606097
2005	2761.1279503202136
2006	2907.2218937258162
2007	3104.6713100414536
2008	3284.77204374576
2009	3168.7918826634996
2010	3074.2041312686833
2011	3081.4964343642046
2012	3170.505919336825
2013	3175.98986855329
2014	3266.568189769516
2015	3174.2604197844103
2016	3198.3546225850655
2017	3237.0825583531528
2018	3222.9592103683503
2019	3287.0527522953416
2020	3083.7206440199056
2021	3247.9658971223257
2022	3287.761209664692
2023	3304.7553652916745