Year	constant 2010 US$
1990	52149839823.5811
1991	46001273334.9236
1992	43431749761.6525
1993	43971867655.8487
1994	45638308667.235
1995	51001590774.1627
1996	54855542516.007
1997	52336920047.4326
1998	55464843810.4241
1999	53138023338.742
2000	53959352399.1606
2001	58457614870.5117
2002	62605311627.7037
2003	67851670448.8637
2004	78599567021.3655
2005	87422715985.6435
2006	96345836812.913
2007	109681517700.053
2008	119226409522.61
2009	111654215807.5
2010	106084930299.884
2011	107571310073.387
2012	109704143136.684
2013	109865049414.238
2014	115042846306.214
2015	121899896248.729
2016	131512064464.298
2017	144725019498.199
2018	152314096588.371