Year	constant 2015 US$
1995	4265748629.490287
1996	5683363382.288169
1997	7248276669.325771
1998	7422541819.82388
1999	7417965021.907077
2000	7288734360.212448
2001	7602439235.46583
2002	8448387175.512895
2003	10221351215.512585
2004	10510401339.388245
2005	10885637302.273256
2006	11800086984.789867
2007	12343924101.332844
2008	13586933641.922232
2009	11575322836.72489
2010	9964046767.638552
2011	9588997977.381737
2012	9153700459.443897
2013	9244479516.968138
2014	9034439652.637781
2015	9777955347.068203
2016	10264869128.942747
2017	10429287800.937971
2018	10840440826.488644
2019	11816595455.26663
2020	11222253682.707447
2021	11961057664.036783
2022	11972854088.562498
2023	12469992910.295826