Year	constant 2015 US$
1995	8045678314388.828
1996	8081176754010.596
1997	8421922993705.837
1998	8099262829225.69
1999	8235573161077.849
2000	8500019558747.073
2001	8775571983944.457
2002	9838291004142.459
2003	9862869155952.229
2004	11045540326885.436
2005	11786484949889.982
2006	13087072816833.678
2007	15000305855479.572
2008	15640636890233.584
2009	16307255302927.986
2010	17572755882514.03
2011	18400214655797.867
2012	19479754039614.277
2013	20319211377669.918
2014	21312267143899.4
2015	22201154190621.168
2016	23286004337811.195
2017	24583122197521.438
2018	25461135478597.23
2019	26296993640314.3
2020	25670158997520.094
2021	27219398263853.77