Year	constant 2015 US$
1976	98773884178.32472
1977	95918891235.35907
1978	92861645046.0318
1979	98923311377.28426
1980	106052833513.94872
1981	96732686399.50798
1982	95513241249.33122
1983	100185993206.42715
1984	101514483163.91675
1985	102772871860.69748
1986	103016508309.24385
1987	104495720813.70985
1988	107357160544.33652
1989	106413285968.6849
1990	101886878129.37573
1991	99468898706.84676
1992	104647926522.17915
1993	112887510249.24644
1994	117114573509.93922
1995	126203756256.48567
1996	136699434608.60062
1997	141361574751.84726
1998	154777850547.3486
1999	197255817479.5087
2000	197594784981.7171
2001	208499573699.60034
2002	225211298951.34375
2003	248125440007.8105
2004	263981208088.98117
2005	283572340693.46075
2006	310707329274.23596
2007	345358176078.7087
2008	371368848772.7269
2009	354813104011.15875
2010	378710274531.71234
2011	232758236554.02084
2012	198794281857.78885
2013	208684972800.72546
2014	223652759012.29684
2015	216244849609.12186
2016	209589062319.48163
2017	219809566678.27182
2018	227040672004.75113
2019	221646199410.81177
2020	195974386230.5551
2021	213883415281.0069
2022	235360447289.9003
2023	243093575517.71085