Year	constant 2015 US$
2015	2551.621256336698
2016	2614.239044943916
2017	2588.595529937956
2018	2690.6994089769746
2019	2776.578196066974
2020	2602.6932345607574
2021	2644.269098517352
2022	2629.1262641485123
2023	2379.0439651579727