Year	constant 2010 US$
1976	833501804.654711
1977	850686188.154262
1978	918674183.378682
1979	961386294.790951
1980	572774872.612149
1981	688503879.55029
1982	521598079.727315
1983	514277501.287541
1984	686942791.595146
1985	779434844.512906
1986	825371033.402567
1987	1118202749.73752
1988	1440225879.92397
1989	1464250849.54422
1990	1494980762.59051
1991	1474873995.17244
1992	1630154101.40667
1993	1771888481.0149
1994	1911923550.55368
1995	1664940456.15878
1996	1741005872.12205
1997	2214606882.01692
1998	2105461243.79103
1999	2257746794.5247
2000	2235912887.40164
2001	1828167810.85186
2002	2166680909.92644
2003	2303492456.94182
2004	2524097148.0228
2005	2116090641.03375
2006	2598786777.5357
2007	2927003865.1652
2008	2955084534.3383
2009	2774354619.79007
2010	2711503228.90815
2011	3468336302.77138
2012	3701379866.169
2013	3486900419.32504
2014	3220665173.699
2015	3046661461.50212
2016	3144426370.19772
2017	3353901236.96868
2018	3593166495.46307