Year	constant 2015 US$
1980	1518.6611420300867
1981	1351.87537609747
1982	1463.0156604577248
1983	1415.9986462424213
1984	1380.5459121627446
1985	1201.9312168688562
1986	955.0544756364116
1987	937.7557522544068
1988	759.6232225843078
1989	784.8457996363968
1990	947.2665323909245
1991	952.5671685022749
1992	975.3949394521469
1993	1058.3169305574827
1994	926.1630304242794
1995	1161.7980032374567
1996	1285.3884211276848
1997	1275.105690633764
1998	1345.8314865421385
1999	1395.0635251572226
2000	1772.7155329179877
2001	1785.9966368191406
2002	1693.8157882065575
2003	1723.030698615434
2004	1721.4717702551295
2005	1899.322416098023
2006	1972.9324849501786
2007	2003.3169775192036
2008	2071.0694675058435
2009	2155.088833209824
2010	2288.815107956151
2011	2400.230699906078
2012	2405.8150917522976
2013	2434.442870929491
2014	2449.1943093573627
2015	2398.4357652881617
2016	2326.617348617989
2017	2430.358814060477
2018	2441.803337690308
2019	2380.9225509030475
2020	2384.539880915241
2021	2494.784014295554
2022	2343.5042539810393