Year	constant 2015 US$
1997	498136366422.3515
1998	500061497674.3535
1999	519683929590.61475
2000	533886419492.8868
2001	523277441211.6451
2002	533913025832.57965
2003	504612896047.484
2004	541633574514.3545
2005	525159484761.5879
2006	524351202540.42053
2007	525369969886.02094
2008	561727819819.6976
2009	560808116295.5386
2010	543424228318.0734
2011	563594087740.3048
2012	548724878080.16595
2013	561685885901.4989
2014	581863970181.3658
2015	576363211906.1149
2016	559820833001.4199
2017	571875071502.416
2018	564913728997.932
2019	569618684817.5302
2020	550916850626.3274
2021	564206690076.7313
2022	569369121947.9646