Year	current US$
2004	1775187020606.9595
2005	2078188857607.7043
2006	2477234311061.154
2007	3040052370438.7197
2008	3651401117084.436
2009	3552703852539.7256
2010	4242016041797.0317
2011	5032312849314.789
2012	5356082355289.737
2013	5622034677287.092
2014	5925050191766.219
2015	5814859133630.781
2016	5765276901278.324
2017	6323880477774.603
2018	6839515552632.478
2019	6809640649632.06
2020	6681930214680.425
2021	8259451454006.032
2022	8491651982110.99
2023	8385207828139.784