Year	current US$
1995	18826909911.105213
1996	20327135430.205357
1997	19341576901.08633
1998	19829016028.495102
1999	19923607864.179195
2000	17849295559.167095
2001	17848886214.144905
2002	19133778892.666702
2003	22266436461.969757
2004	24719503518.38153
2005	24788453889.792984
2006	25767222017.036434
2007	29445466212.602448
2008	31350904486.169525
2009	27239266619.330452
2010	27624122572.200054
2011	27803881630.690716
2012	24636786374.707035
2013	26143168215.71419
2014	27108778551.346573
2015	24203865048.641003
2016	25087765344.484497
2017	27321113316.70593
2018	29713289029.425076
2019	28547154139.88231
2020	27525339715.28568
2021	31597374566.142902
2022	31253912827.40479
2023	34296929353.292763