Year	current US$
1995	285524417506.554
1996	276587232586.947
1997	245694707149.428
1998	254258777946.176
1999	249965500974.193
2000	236584390601.742
2001	233152145747.623
2002	245742349654.49
2003	300454247583.496
2004	335095696898.596
2005	357234246457.833
2006	375504609429.393
2007	386075759739.113
2008	403714188046.177
2009	432208067538.371
2010	494464162298.821
2011	559016934483.714
2012	547936833806.623
2013	561777826575.911
2014	565016110459.73
2015	549515574202.725
2016	533120792261.672
2017	533068115454.978
2018	538180749516.028
2019	536712507500.121
2020	543957609133.445
2021	606111972184.517