Year	constant 2015 US$
2004	533.3335722569088
2005	749.9939085507306
2006	776.6118816971771
2007	809.4638172506274
2008	812.3362319142096
2009	778.7693273025468
2010	997.3760436457337
2011	858.7678782830216
2012	1040.2930618451273
2013	1030.3686625651528
2014	1079.9489402467564
2015	1050.2346014853981
2016	981.0459010380642
2017	1111.39879412573
2018	1078.2892450168401
2019	1050.4998460209242
2020	1073.1749118871699
2021	1105.4080958481454
2022	1072.0063396448388