Year	constant 2010 US$
2006	4102943048.68964
2007	4572766303.24372
2008	4625134421.34489
2009	4478239317.3969
2010	5100738132.32207
2011	5337616983.81526
2012	5343351391.61644
2013	5763151621.85955
2014	6001493871.47017
2015	6467082007.17817
2016	7070624365.13849
2017	7905288142.47985
2018	8373395408.68152