Year	constant 2015 US$
1999	294892799.7417962
2000	314290472.59128433
2001	338102400.87058884
2002	363132595.42147654
2003	383220076.4430551
2004	394076145.2224387
2005	422510929.679448
2006	438454177.58971375
2007	436763447.63785213
2008	449040396.34111446
2009	506681654.497167
2010	537485519.7585044
2011	560419067.8908569
2012	535548371.2894697
2013	538668078.8196809
2014	535939427.6987365
2015	571623981.9019457
2016	618293478.1939918
2017	627434868.6391422
2018	644150494.9535242
2019	673354125.8589765
2020	665595582.2052692
2021	620387540.2547171
2022	586196615.647735
2023	624911114.0198919