Year	constant 2015 US$
2000	24726760199.217358
2001	24712042921.79577
2002	27430613492.276478
2003	29023172679.881958
2004	30225064990.62137
2005	34841118073.538284
2006	41061233029.3657
2007	45472626921.721176
2008	46077522041.23791
2009	36389059798.3886
2010	37489818272.88866
2011	39548925612.395164
2012	42598658944.83605
2013	43569404435.95962
2014	42445740798.571526
2015	43295658106.44034
2016	47125371974.73022
2017	51511449965.50926
2018	55406023270.362686
2019	56195999668.25681
2020	53005119544.93861
2021	54656027841.6781
2022	57534176296.31039
2023	58409294452.468506