Year	constant 2015 US$
2000	11299485647.52265
2001	12014692080.487103
2002	13017527525.704288
2003	14167564265.146475
2004	15293383666.724989
2005	17115049610.839443
2006	18965045857.103115
2007	20502921703.5664
2008	20131216023.487885
2009	17791916825.868355
2010	17733080466.7914
2011	19247935030.287106
2012	20111868337.701164
2013	20982923608.360146
2014	21774906114.330067
2015	22387751107.03124
2016	23279953693.385536
2017	24543223989.90624
2018	25771342699.026157
2019	26975296217.388268
2020	26839568395.96522
2021	29208802251.373814
2022	28988469633.989048