Year	constant 2015 US$
1995	1042768257.1016788
1996	2328117658.600649
1997	3517311716.118047
1998	4555093364.506533
1999	2632616933.3780904
2000	3117428156.0966606
2001	4799481304.467799
2002	5727831429.466162
2003	7335063390.632005
2004	8061527546.395061
2005	9462291298.914614
2006	10148701756.272379
2007	10531295771.560755
2008	11853586588.90829
2009	10486947879.783766
2010	12254552460.82845
2011	12944341607.510427
2012	13314143052.533318
2013	15717077038.555466
2014	16394715327.917082
2015	17915464299.81962
2016	20066575729.524727
2017	21718228031.661194
2018	23347486150.46627
2019	25137795743.41572
2020	24076333408.00379
2021	29013680798.6845
2022	33836416652.019753
2023	34651554301.39802