Year	constant 2015 US$
1980	64117376.54743161
1981	67419145.85472313
1982	65978430.46476633
1983	63197891.26172448
1984	72150961.32991664
1985	90609858.31643437
1986	109164083.0480011
1987	103728801.95668459
1988	102178678.30111639
1989	118963569.7115599
1990	109149438.30920061
1991	109149257.53147277
1992	128338123.81680408
1993	137128224.14626735
1994	131932390.29446791
1995	123278819.4719381
1996	144820672.91453075
1997	163846012.29507282
1998	179949082.0154372
1999	151924267.23500547
2000	224188528.60526448
2001	216614593.27185726
2002	257513627.719128
2003	233277142.828789
2004	244654158.79477176
2005	286336845.6344792
2006	334768174.1158685
2007	292845041.49284583
2008	235431612.6373446
2009	244930102.51699397
2010	245935122.88773206
2011	285439794.8224621
2012	282350058.4937713
2013	291643794.17841303
2014	288159173.3284446
2015	319286806.8582331
2016	359435096.4020828
2017	371229136.40255564
2018	413393286.89510673
2019	422130930.8799662
2020	444287071.92574996
2021	436893662.5505592
2022	380577928.666324
2023	431832333.29477113