Year	constant 2015 US$
1980	5225924297.991837
1981	5362138386.147044
1982	5454931782.108015
1983	5491055371.000686
1984	5437076728.953942
1985	5759757356.478335
1986	6130723616.405724
1987	6473949971.06876
1988	7388168551.168602
1989	7517499693.669169
1990	4995157319.151354
1991	4000643408.2142076
1992	3707517245.2915845
1993	3060519798.0485616
1994	3093083616.973
1995	2991656455.6387587
1996	966758565.9178586
1997	2421473791.695032
1998	3211532221.4658523
1999	3930459496.255959
2000	4578169956.886774
2001	5486101089.176313
2002	5932430791.921946
2003	6694931926.480602
2004	7617921488.540961
2005	9654465055.593378
2006	10904766848.196056
2007	12328472884.04811
2008	15036576469.253464
2009	12379175743.135923
2010	10195376673.47402
2011	9746492511.912867
2012	9923948264.125256
2013	9977969707.283867
2014	10325035171.318357
2015	10599269911.504425
2016	9896943498.978897
2017	10216685954.16383
2018	10768788858.63399
2019	11256531654.18652
2020	11323461538.461538
2021	10380276265.032902
2022	11054255162.241888
2023	11421777853.415022