Year	constant 2010 US$
1980	28567896236.6319
1981	29967769392.1754
1982	30667386625.1523
1983	31719371801.814
1984	32796702382.564
1985	33676782455.6654
1986	35093767429.2676
1987	37218524434.8179
1988	41291977325.0305
1989	39933519967.5105
1990	36292630364.1532
1991	33227588804.6568
1992	30811149654.799
1993	30355078448.626
1994	30906937186.95
1995	31790934141.0586
1996	32014958711.2495
1997	31666373358.603
1998	33676864762.4205
1999	30845268715.3107
2000	32315283606.3355
2001	33533640178.6923
2002	35524705563.8283
2003	37356436983.8906
2004	39760457560.5794
2005	42592798158.9278
2006	45520779748.2063
2007	48864017869.2297
2008	51806552050.9002
2009	49948693651.0085
2010	50610058210.3696
2011	51579193177.2032
2012	51595167185.5963
2013	51850006768.6476
2014	52802761608.2307
2015	54635643698.3891
2016	56786516853.9326
2017	58950791931.772
2018	60767158521.7273