Year	constant 2015 US$
2002	22980686876.986618
2003	25207515435.36662
2004	27004811284.60532
2005	30231886231.880043
2006	32151611006.931107
2007	34595133445.434845
2008	40881069191.75549
2009	40687115251.66202
2010	35911164794.231544
2011	39843452352.47339
2012	39807809155.05769
2013	41550853629.9898
2014	39407460214.18367
2015	29985009888.78196
2016	22567047950.90048
2017	25102027086.545155
2018	21091862865.825966
2019	15808662004.190392
2020	12379044249.223078
2021	11906607758.725475
2022	15015387978.731184
2023	13997219924.676702