Year	constant 2015 US$
2001	1167867594411.72
2002	1192929286040.607
2003	1256058660145.9058
2004	1337946961324.3096
2005	1443329547760.5056
2006	1539081662665.5227
2007	1634662880363.3613
2008	1708873145243.0374
2009	1748269087832.2415
2010	1836546061542.942
2011	1912023726457.154
2012	2045181506871.6663
2013	2147181381747.3909
2014	2255927942289.22
2015	2373487942253.496
2016	2493242199382.047
2017	2624268107485.375
2018	2785874769014.9395
2019	2890976847556.8926
2020	2895829344221.037
2021	3105821322109.7114
2022	3272743772038.0703
2023	3383038319688.323