Year	current US$
2011	10259286600.496277
2012	16067394957.983194
2013	16239065525.092508
2014	21129157230.330482
2015	26269302133.86989
2016	27748923237.636707
2017	31435988584.46857
2018	29265695241.813824
2019	33822606565.61345
2020	32920623983.15628
2021	31181473945.499615
2022	32127031992.435413
2023	36294219987.49431