Year	constant 2010 US$
1995	3462773997.43751
1996	3798049090.82296
1997	4250073141.49131
1998	4190312412.25749
1999	3550757518.08408
2000	4157238789.20932
2001	4343701522.71571
2002	4765040586.89423
2003	5498856843.42261
2004	5608833958.12274
2005	6382853043.68871
2006	6893481317.41333
2007	7162327072.82118
2008	7570579723.83166
2009	7048209721.93001
2010	7562729014.57641
2011	8146625031.32756
2012	8218874613.98503
2013	8652724605.46498
2014	9030590129.41743
2015	8824672016.53133
2016	9054289618.79103
2017	9480990402.51105
2018	9721718983.75017