Year	constant 2015 US$
1995	4467197356.623827
1996	5661266224.643358
1997	5917986426.789061
1998	6910289266.135545
1999	6550621800.920311
2000	6725819433.914451
2001	7777692020.358591
2002	7988538302.528512
2003	8936392945.963667
2004	10782272899.403118
2005	12621211740.19882
2006	15382558546.283195
2007	18066218369.278896
2008	16053695127.232023
2009	11093998312.614447
2010	12514690736.108587
2011	15365582999.056633
2012	16171819417.132416
2013	16151224638.856634
2014	16635745589.653898
2015	16909654365.501163
2016	17512560341.72812
2017	19009126804.24765
2018	20213883609.942574
2019	20663471547.37851
2020	20427277333.70937
2021	23503775728.811325
2022	26111186497.424603
2023	25368971192.163666