Year	constant 2015 US$
2003	7838225090.322449
2004	8220173242.326497
2005	9158876530.354937
2006	8719938376.055126
2007	11528959176.835379
2008	12352508687.115341
2009	15762182815.703978
2010	23367100272.326912
2011	10485201895.859053
2012	25520170726.800003
2013	31163771846.291046
2014	22910820202.563515
2015	16894027700.349693
2016	13485157070.357729
2017	13386667398.36341
2018	17239640070.324795
2019	23494543272.272125
2020	14049764225.74029
2021	20595003925.706528
2022	17727756960.170765
2023	14795167458.12538