Year	current US$
2005	11758123354.15891
2006	14152389574.941626
2007	17256478907.62663
2008	20729296381.71224
2009	18934743208.17743
2010	23237631499.02848
2011	28624769549.38067
2012	30293944196.878788
2013	30518022628.844383
2014	33396359655.3135
2015	29060750703.62006
2016	27878846572.40597
2017	27922263256.849083
2018	34074518044.459816
2019	32266907996.158897
2020	30556352509.738842
2021	35170895655.57543
2022	38633048125.077