Year	constant 2010 US$
1995	22148274690.0414
1996	22488141871.8876
1997	23665633354.5563
1998	25324191559.2032
1999	27389142786.1349
2000	29714800345.1615
2001	31069413732.4897
2002	32108547889.9094
2003	32426094546.3941
2004	33541199015.0501
2005	34803529155.1142
2006	37678250712.1285
2007	40381089787.6322
2008	40928624075.373
2009	39503751295.064
2010	41648394465.9541
2011	42709627969.8512
2012	42420013425.1493
2013	43735116582.098
2014	45589979655.2291
2015	47137908685.0436
2016	48118574800.4168
2017	49234358698.8189
2018	50317210783.1157