Year	constant 2015 US$
2006	4232975249.976585
2007	4181508216.360744
2008	4336243864.048223
2009	4279626864.0253453
2010	4604897132.976297
2011	5387729625.258801
2012	5492994154.28336
2013	5429054007.109526
2014	5289648011.466459
2015	5483226997.3795595
2016	5917447794.726378
2017	6480561860.680894
2018	6749170116.894312
2019	7175814325.935908
2020	7313111046.846332
2021	7908544543.013019
2022	7712256928.286244
2023	7784924536.5090275