Year	constant 2015 US$
2001	566.4515527171974
2002	555.8537758585635
2003	569.8725270135345
2004	588.1812156518702
2005	605.6202418057342
2006	623.3179658650141
2007	641.4674835710837
2008	675.9756462454219
2009	704.2640916587665
2010	731.7240319079298
2011	751.9304453509055
2012	786.8537341318832
2013	812.7717910761356
2014	865.8131230898575
2015	894.7733904273609
2016	889.4771128303671
2017	956.1383910948309
2018	1013.7214051859016
2019	1073.257914843824
2020	1030.4674749575088
2021	1049.212326325373
2022	1090.2688738986496
2023	1105.4921048318981