Year	constant 2010 US$
1981	74415558305.4562
1982	76059832468.0152
1983	74105949068.8752
1984	73293955417.699
1985	77738488562.7693
1986	83491846489.4189
1987	85495788894.9094
1988	88227315861.4978
1989	94715239726.0815
1990	94087274099.772
1991	96775309721.8852
1992	94879765706.5599
1993	100711698370.98
1994	101187726556.599
1995	104560901519.126
1996	113248675682.057
1997	117313759531.312
1998	120195723789.603
1999	125819079713.857
2000	126774909933.258
2001	132120885625.173
2002	154094354992.678
2003	158960463460.194
2004	165255561232.17
2005	174208618509.924
2006	183183106054.266
2007	191264118859.938
2008	201523312473.319
2009	208290449599.196
2010	218511834211.06
2011	225042839719.066
2012	238878970991.817
2013	246361453741.484
2014	257465297892.832
2015	266343139526.642
2016	275150879040.992
2017	287646857049.556
2018	294098387428.12