Year	constant 2015 US$
1980	2024.9384117203642
1981	2085.456200931996
1982	1916.2466791639727
1983	1923.5718234275123
1984	1856.4909091009542
1985	1779.6345580807754
1986	1699.250168825003
1987	1765.513818767842
1988	1732.5975440356272
1989	1759.8964383195396
1990	1779.6641476776242
1991	1812.6118992346026
1992	1989.2960120044352
1993	2065.113574127208
1994	2181.649083541196
1995	2306.696780967198
1996	2289.9815299489665
1997	2197.97312501094
1998	2169.8885140930734
1999	2058.0966403679686
2000	1772.0600554064017
2001	1609.750741674164
2002	1493.5335004560854
2003	1577.156030797249
2004	1683.2171163591506
2005	1764.3365288504801
2006	1743.425039813737
2007	1707.8302364505573
2008	1729.8858213250735
2009	1749.41449979443
2010	1917.7084056627953
2011	1974.1969358572164
2012	2025.4705870131934
2013	2189.8185481708156
2014	2129.3721275417124
2015	2095.304516599407
2016	2130.542395024223
2017	2166.601875363119
2018	2187.9248824065467
2019	2180.187454086502
2020	2129.203215041084
2021	2105.3106418748757
2022	2094.539575527091