Year	constant 2015 US$
1990	5320945984.04861
1991	4996356901.695634
1992	4479494675.811466
1993	4754146976.444792
1994	5081315572.137397
1995	5379680442.111366
1996	5431718822.127342
1997	5465404776.519424
1998	5664221456.216474
1999	5910308946.344055
2000	6076619049.466975
2001	5970189015.133924
2002	6181568277.22693
2003	6213793448.841465
2004	6585452393.822518
2005	6987573645.450134
2006	7265142610.873943
2007	7769604050.108914
2008	8216290528.126871
2009	7999270098.1363535
2010	8183454229.990107
2011	7849356061.259985
2012	7962579001.936289
2013	8088706114.178151
2014	8278883986.92301
2015	8637239177.612432
2016	8822434018.714489
2017	8929780742.830885
2018	9223615075.692518
2019	9548193773.59559
2020	9416237454.5263
2021	10094634903.934546
2022	10313018616.166962
2023	10506816238.312723