Year	constant 2015 US$
2002	2186.7448719041786
2003	2236.2591638663225
2004	2393.7838452461915
2005	2381.0661003581517
2006	2395.8245705128065
2007	2790.8143829407686
2008	3107.3524043127272
2009	3387.3242654565242
2010	3732.1253222323926
2011	3792.28379772315
2012	3939.1047097344713
2013	4011.963238123656
2014	3942.4904819478747
2015	3738.4154988245778
2016	3564.139003426054
2017	3304.2391857013768
2018	3423.217558832273
2019	3441.6007261397167
2020	3415.476754302255
2021	2385.62582086529
2022	2406.5923040298408