Year	current US$
1981	10692289458.393726
1982	11263171711.943794
1983	10660411261.26041
1984	7085675682.813305
1985	4952589560.077952
1986	5115879716.661934
1987	6485030665.352306
1988	7897052922.123712
1989	10192544569.472721
1990	11784447260.648691
1991	10210327762.665632
1992	12536624807.172894
1993	14383502296.952911
1994	17054504182.829294
1995	18447634773.06374
1996	22036285698.482994
1997	22646203525.55413
1998	14890226260.94165
1999	13874267828.866259
2000	13123074299.226673
2001	14951766672.02692
2002	17248555511.67616
2003	16997634342.891792
2004	19694871628.735638
2005	19944162392.159447
2006	20444047331.626427
2007	25157529680.720615
2008	34449009710.2002
2009	30675428826.21212
2010	42594292262.961655
2011	48576401293.676796
2012	51233564512.082344
2013	58603858125.29442
2014	62245371174.97104
2015	65398453634.9819
2016	78441198620.48009
2017	83955648706.08757
2018	94169593687.44829
2019	99488192909.44978
2020	63065448325.74884
2021	83312972880.2172
2022	99818113504.09871
2023	101947685038.4744