Year	constant 2015 US$
2005	6913559369.723356
2006	6864808136.419446
2007	8508387370.822269
2008	9817168522.28817
2009	9216597119.021156
2010	9201944100.105032
2011	8216879567.443219
2012	8597227226.87707
2013	7945283259.451652
2014	7984810647.23014
2015	7470701298.606579
2016	6800281604.294836
2017	6544533427.647769
2018	6173975527.938632
2019	5339449104.4803915
2020	4905658000.77622
2021	4654926601.045591
2022	5006491949.654033
2023	4729811007.260488